[
  {
    "article_id": 237,
    "article_title": "Bacterial Gastroenteritis",
    "section_id": "f33dbc4817554d7b93bca60f53034e08",
    "section_title": "Management",
    "variant": "clinical",
    "imperatives": 4,
    "content": "**Assessment and Initial Management**\n\nRapidly assess for dehydration and shock, particularly in infants who can deteriorate quickly. Check for hypoglycemia, which is common in young infants. Obtain a history of bloody diarrhea (suggests bacterial infection) and recent antibiotic use (suggests *C. difficile*).\n\n**Fluid Resuscitation**\n\nFluid resuscitation is the cornerstone of treatment. In infants, this may improve clinical appearance and clarify whether dehydration is the primary diagnosis.\n\n**Diagnostic Testing**\n\nSend stool culture for bacterial identification (results in several days). Consider rapid PCR detection of gastrointestinal pathogens if available. Obtain complete blood count; bandemia with normal WBC count suggests *Shigella*. For suspected *Vibrio* infection, notify laboratory so special identification techniques can be employed.\n\n**Antibiotic Treatment**\n\nAntibiotics are indicated for:\n- *Salmonella* (nontyphi): Ceftriaxone or azithromycin if bacteremic, <3 months old, or immunocompromised (including children with hemoglobinopathies)\n- *Shigella*: Azithromycin or ceftriaxone daily for 3 days\n- *Giardia*: Metronidazole 15 mg/kg/day divided into three daily doses for 5 days (maximum 750 mg/day)\n\nFor invasive disease from susceptible strains, use expanded-spectrum cephalosporin, azithromycin, or fluoroquinolone.\n\n**Monitoring and Disposition**\n\nTransfer to ICU if: decompensated shock unresponsive to fluid boluses, concern for acute adrenal insufficiency, [[241|diabetic ketoacidosis]], increased intracranial pressure, or [[100|myocarditis]].\n\nDischarge when: dehydration resolved, oral intake adequate to maintain hydration, and oral antibiotics (if indicated) are tolerated.\n\n**Specialist Consultation**\n\n- **Gastroenterology**: Persistent diarrhea >14 days, significant GI bleeding, or suspected [[254|inflammatory bowel disease]]\n- **Infectious disease**: Unusual or resistant pathogen, multiple *C. difficile* recurrences\n- **Surgery**: Possible [[193|acute abdomen]]"
  },
  {
    "article_id": 238,
    "article_title": "Bacterial Meningitis",
    "section_id": "23b4c43309f04f6ca7b05094c552ac2e",
    "section_title": "Management",
    "variant": "clinical",
    "imperatives": 1,
    "content": "**Immediate Actions**\n\n1. **Recognise the clinical picture**: Fever with irritability, vomiting, altered sleep, or paradoxical irritability (worsens with handling). Bulging fontanelle in infants. [[315|Seizures]] in 20% of cases.\n\n2. **Decide on neuroimaging before lumbar puncture**: Perform CT scan prior to lumbar puncture if the child has coma, recent CNS trauma, focal neurological deficit, papilledema, or cerebrospinal fluid shunt. Immunocompromised children should also have neuroimaging considered.\n\n3. **Start antibiotics immediately** (do not wait for lumbar puncture results):\n   - **Vancomycin**: 60 mg/kg intravenously\n   - **Ceftriaxone**: 100 mg/kg intravenously, up to 2 g, every 12 hours\n\n4. **Perform lumbar puncture** (once safe to do so) and send cerebrospinal fluid for:\n   - Gram stain\n   - Culture and sensitivities\n   - Cell count with differential\n   - Protein\n   - Glucose\n   - Opening pressure measurement\n\n5. **Interpret cerebrospinal fluid findings**:\n   - WBC count typically >1,000/μL with neutrophil predominance\n   - Glucose <40 mg/dL\n   - Protein >100 mg/dL\n   - Opening pressure may be >25 cm H₂O in older children\n   - Absence of organism on Gram stain does not exclude bacterial [[147|meningitis]]\n\n**Ongoing Management**\n\n6. **Adjust antibiotics based on susceptibilities** once available:\n   - For susceptible organisms: aqueous penicillin G 250,000 U/kg per day divided every 4 hours OR ampicillin 300 mg/kg per day divided every 6 hours\n   - For penicillin- and cephalosporin-resistant *S. pneumoniae*: continue vancomycin and ceftriaxone; consider adding rifampin\n\n7. **Add adjunctive dexamethasone**:\n   - Dose: 0.15 mg/kg per dose intravenously\n   - Frequency: every 6 hours\n   - Duration: 2 days\n   - Timing: begin with the first dose of antibiotic\n   - Benefit: reduces [[248|hearing loss]] and short-term neurological sequelae\n\n8. **Continue antibiotic therapy**:\n   - Neonates: 3 weeks\n   - Older children: 7–10 days (may extend longer)\n\n9. **Infection control**:\n   - Droplet precautions for meningococcal [[147|meningitis]]\n   - Standard precautions for other bacterial causes\n\n10. **Supportive care**: Manage raised intracranial pressure, electrolyte imbalances, and [[315|seizures]] as needed. Consider intensive care unit admission for close initial monitoring."
  },
  {
    "article_id": 240,
    "article_title": "Brain Death",
    "section_id": "94ec5456264f477daef0bd31b08af25c",
    "section_title": "Clinical Assessment and Documentation",
    "variant": "clinical",
    "imperatives": 1,
    "content": "**Step 1: Verify Prerequisites**\n\nBefore beginning the brain death examination, confirm:\n- Known catastrophic brain injury from recognised aetiology ([[272|traumatic brain injury]], anoxic brain injury, intracranial infection, [[338|toxic ingestion]], or other specified cause)\n- Blood pressure normal for age\n- Core temperature >35°C\n- Serum electrolytes normal\n- Blood glucose normal\n- No sedating medications or muscle relaxants on board\n- Sufficient time elapsed for clearance of any sedating drugs or toxins\n- Reversible causes of coma excluded through review of medical history, neuroimaging, EEG, and laboratory data\n\n**Step 2: First Clinical Examination**\n\nPerform comprehensive neurologic examination documenting:\n- Deep coma: unresponsiveness to tactile, auditory, and visual stimulation (excluding spinally mediated reflexes)\n- Absent brainstem reflexes: test all cranial nerve reflexes as per institutional protocol\n- Apnea: absence of respiratory effort with adequate respiratory stimulus\n- Confirm any motor movements are spinally mediated; use ancillary testing if distinction unclear\n\n**Step 3: Observation Period**\n\n- Term newborns (37 weeks gestational age) to 30 days old: observe at least 24 hours before second examination\n- Children 31 days to 18 years old: observe at least 12 hours before second examination\n- Observation interval may be shortened if ancillary study (EEG or other) is consistent with brain death\n\n**Step 4: Second Clinical Examination**\n\nRepeat complete neurologic examination with same findings as first examination.\n\n**Step 5: Documentation**\n\nUse institutional brain death checklist to document:\n- Irreversible and identifiable cause of coma\n- Correction of confounding conditions\n- Completion of all components of neurologic examination\n- Timing of both examinations and observation interval\n- Results of any ancillary testing performed\n- Names and credentials of examining physicians\n\n**Note on Ancillary Testing**\n\nAncillary tests such as EEG may be used if the patient cannot tolerate portions of the clinical examination (particularly apnea testing) or is very young, especially under 1 year of age."
  },
  {
    "article_id": 241,
    "article_title": "Diabetic Ketoacidosis",
    "section_id": "ea656d64bd9541d98f97de7084f3d7b1",
    "section_title": "Management",
    "variant": "clinical",
    "imperatives": 5,
    "content": "**Initial Assessment and Investigations**\n\n1. Consult with pediatric endocrinologist and/or pediatric intensivist early\n2. Obtain height and weight (compare to premorbid weight)\n3. Assess severity of [[99|dehydration]] and level of consciousness\n4. Perform essential investigations:\n   - Blood glucose\n   - Blood ketones\n   - Urea and electrolytes, creatinine\n   - Blood gas analysis\n   - Blood and urine cultures (to identify infection)\n   - Cardiac monitor (assess for T-wave changes of hypokalaemia)\n\n**Treatment Goals**\n\n- Restore circulating volume\n- Correct metabolic derangements\n- Avoid treatment complications (hypokalemia, cerebral edema)\n- Identify and treat underlying cause (infection, insulin pump malfunction, etc.)\n\n**Monitoring for Complications**\n\nWatch for cerebral edema, which typically presents 4–12 hours after treatment initiation. Maintain high vigilance in patients with risk factors: elevated blood urea nitrogen, low CO₂ tension, age under 3 years, new-onset diabetes, or failure of serum sodium to rise steadily during hyperglycemia correction."
  },
  {
    "article_id": 242,
    "article_title": "Duchenne Muscular Dystrophy",
    "section_id": "2207461fd3ae43ef8f258b9c9a457202",
    "section_title": "Management",
    "variant": "clinical",
    "imperatives": 6,
    "content": "**Diagnosis**\n\n1. Obtain serum creatine kinase level (expect marked elevation, 10–10,000 times normal)\n2. Perform genetic testing on peripheral blood (detects mutations in ~70% of cases)\n3. If genetic testing negative, arrange muscle biopsy with dystrophin analysis\n4. Assess intellectual function and screen for [[114|learning disability]], ADHD, and [[117|autism spectrum disorder]]\n\n**Pharmacological Management**\n\nSystemic corticosteroids are indicated to slow disease progression and maintain strength. Specific dosing regimens are not detailed in the available passages.\n\n**Monitoring and Complications**\n\n- Monitor for respiratory complications after loss of ambulation, including [[224|scoliosis]], ineffective cough, and sleep-disordered breathing\n- Assess cardiac function regularly given high incidence of cardiomyopathy and dysrhythmias\n- Evaluate diaphragm function as weakness is common\n- Provide multidisciplinary care addressing neuromuscular, respiratory, cardiac, orthopedic, endocrine, gastrointestinal, and nutritional needs\n- Coordinate psychosocial support and transition planning across the lifespan"
  },
  {
    "article_id": 244,
    "article_title": "Febrile Neutropenia",
    "section_id": "7e750cc675d0491a85924e279f878c93",
    "section_title": "In short",
    "variant": "short",
    "imperatives": 2,
    "content": "- Neutropenia is ANC <1500/μL; severe neutropenia is <500/μL\n- Febrile neutropenia is fever (≥38.3°C single reading or ≥38.0°C for 1 hour) with ANC <500/μL\n- Fever may be the only sign of life-threatening infection; clinical signs of infection are often diminished\n- Approximately 50% of febrile neutropenic patients have documented infections; 1 in 5 with profound neutropenia (ANC <100/μL) develop [[350|bacteremia]]\n- Obtain blood cultures, urine cultures, and cultures from identified infection sites before starting antibiotics\n- Start broad-spectrum IV antibiotics within 1 hour of arrival; do not wait for culture results\n- High-risk patients (anticipated neutropenia >7 days, clinically unstable, or comorbidities) require hospitalisation and IV antibiotics\n- If fever persists >3–5 days on antibiotics, add empiric antifungal coverage for *Candida* and *Aspergillus*\n- *Staphylococcus aureus* and gram-negative organisms are common causative pathogens\n- Treatment continues until fever resolves and neutrophil count rises"
  },
  {
    "article_id": 244,
    "article_title": "Febrile Neutropenia",
    "section_id": "f72ed46188374292aee69b7251880b0a",
    "section_title": "Management at the Bedside",
    "variant": "clinical",
    "imperatives": 2,
    "content": "**Initial Assessment and Culture**\n\n1. Obtain blood cultures, urine cultures, and cultures from any identified infection sites (abscess, [[353|cellulitis]], etc.)\n2. Examine cerebrospinal fluid if CNS infection is suspected\n3. Do not delay antibiotics while awaiting culture results\n\n**Antibiotic Initiation**\n\nStart broad-spectrum intravenous antibiotics within 1 hour of patient arrival. For high-risk patients (anticipated neutropenia >7 days, clinically unstable, or with comorbidities), use empiric monotherapy with one of the following:\n\n- Piperacillin/tazobactam\n- Carbapenem\n- Ceftazidime\n- Cefepime\n\nFor ill-appearing patients or those with poor marrow function (congenital neutropenias, bone marrow failure syndromes), an example initial regimen may include ceftriaxone, vancomycin, and metronidazole. If abdominal pain is present, ensure anaerobic coverage.\n\n**Special Considerations**\n\n- For soft tissue infections, consider adding a semisynthetic penicillin and aminoglycoside or vancomycin to cover for MRSA\n- With evidence of [[226|sepsis]], add double coverage for gram-negative organisms in addition to vancomycin\n- For patients in shock, consider fungal coverage\n\n**Ongoing Management**\n\n- Continue antibiotics until fever resolves and neutrophil count rises\n- If fever persists for more than 3–5 days despite broad-spectrum antibiotics, add empiric antifungal coverage\n- Low-risk, well-appearing patients with normal marrow function and reassuring vital signs may be managed as outpatients following an initial antibiotic dose, with close observation and follow-up\n\n**Transfusion Support**\n\nPatients receiving immunosuppressive therapy should receive irradiated blood products to prevent graft-versus-host disease and leukoreduced blood products to prevent transfusion-associated reactions and infections."
  },
  {
    "article_id": 245,
    "article_title": "Gastroesophageal Reflux",
    "section_id": "3356818d9c0b4e06817b5cc103ed1863",
    "section_title": "Management",
    "variant": "clinical",
    "imperatives": 5,
    "content": "**Initial Assessment**\n\nObtain history of symptom onset, frequency, and character. Determine whether regurgitation or vomiting is present. Assess for respiratory symptoms (cough, wheezing, hoarseness, apnea), failure to thrive, poor weight gain, and irritability. Evaluate for history of reflux in infancy and reactive airway disease.\n\nNote that regurgitation episodes need not be present for GERD diagnosis.\n\n**Nonpharmacologic Management (First-line)**\n\nFor infants and young children:\n- Reduce feed volumes\n- Thicken feeds\n- Position infant after feeds\n\nFor older children:\n- Avoid foods that exacerbate symptoms\n- Recommend small, frequent meals\n\nProvide parental education, guidance, and support, particularly regarding choking after spitting up.\n\n**Pharmacologic Management**\n\nIf nonpharmacologic measures are insufficient:\n- Initiate proton pump inhibitors (specific dosing not provided in source material)\n- Consider prokinetic drugs if gastroparesis is associated\n\nProton pump inhibitor therapy is often adequate for symptom control.\n\n**Surgical Management**\n\nFundoplication is rarely indicated and reserved for medically refractory cases of GERD. Before considering surgery, exclude alternative causes of recurrent vomiting.\n\n**Follow-up Considerations**\n\nPatients with esophageal atresia and tracheoesophageal fistula require long-term follow-up due to increased risk of Barrett esophagus and esophageal cancer."
  },
  {
    "article_id": 246,
    "article_title": "Growth Failure",
    "section_id": "eded775f4f4f4e4eae8f630091343157",
    "section_title": "Evaluation and management at the bedside",
    "variant": "clinical",
    "imperatives": 3,
    "content": "Start with careful, accurate anthropometry at every visit: weigh and measure length/height and head circumference with consistent technique, and plot on the appropriate growth chart (WHO for children under 2 years). Look specifically for the defining patterns - weight-for-age below the 3rd-5th percentile, weight-for-length below the 5th percentile, or crossing of two or more major percentile lines - and correct for prematurity where relevant (weight to 24 months, head circumference to 18 months, length/height to 40 months). \n\nBecause the underlying problem is almost always undernutrition, structure the history and exam to sort the child into one (or more) of four functional categories: inadequate intake (feeding technique, access to food, formula preparation errors, oral-motor or behavioral feeding problems), excessive losses (vomiting, diarrhea, malabsorption), ineffective use of calories (metabolic disease), or increased requirement (chronic illness, congenital heart disease, chronic infection). A thorough psychosocial assessment of the family is a required part of the work-up in every case, not only when a nonorganic cause is suspected, since organic and nonorganic contributors commonly overlap. Reserve escalation to subspecialty or hospital-based evaluation for children with severe or rapidly progressive growth deceleration, suspected serious organic disease, or when outpatient nutritional intervention and follow-up have failed - re-measurement and re-plotting of growth parameters over time is the key tool for judging whether an intervention is working."
  },
  {
    "article_id": 246,
    "article_title": "Growth Failure",
    "section_id": "e459aa3569f44206b2624927b6f7814b",
    "section_title": "In short",
    "variant": "short",
    "imperatives": 1,
    "content": "- Growth failure (old term \"[[104|failure to thrive]]\") is a descriptive sign, not a diagnosis - the underlying cause is [[214|malnutrition]] in nearly all cases\n- Common anthropometric criteria: weight-for-age below the 3rd-5th percentile, weight-for-length below the 5th percentile, or downward crossing of 2 or more major percentile lines\n- Also defined as no growth for 2 consecutive months if under age 6 months, or no growth for 3 consecutive months if over age 6 months\n- Affects mainly infants and toddlers, most sources scope it to children under 3-5 years of age\n- Prevalence is about 5-10% in Western primary care populations, roughly 8% by one estimate, with 1% of tertiary-center hospital admissions attributable to it\n- Traditionally split into organic (identifiable medical illness) and nonorganic/psychosocial causes; nonorganic causes account for up to 80% of cases and the two often coexist\n- Weight is affected earlier and more severely than length; head circumference is relatively spared until undernutrition is prolonged\n- Use WHO growth charts (not CDC) for children under 2 years - they flag fewer children as underweight\n- When correcting for prematurity, adjust weight until 24 months, head circumference until 18 months, and length/height until 40 months of age\n- Distinguish from constitutional growth delay, where weight and height dip in infancy, track along a lower percentile through childhood, then show a growth spurt in late adolescence reaching a normal adult height"
  },
  {
    "article_id": 248,
    "article_title": "Hearing Loss",
    "section_id": "9edea285cbaa4c818e8e6887fcfeb568",
    "section_title": "Evaluation and referral",
    "variant": "clinical",
    "imperatives": 1,
    "content": "In a newborn who fails hearing screening (OAE and/or ABR), refer promptly to a multidisciplinary center for audiology, otolaryngology, and speech pathology evaluation and treatment; add a genetics consultation, since roughly half of sensorineural hearing loss has a genetic etiology and genetics can clarify diagnosis, prognosis, and associated risks. If auditory neuropathy is suspected, ABR is the appropriate screening/diagnostic modality rather than OAE alone. For a child old enough to cooperate (generally by age 4), obtain pure tone audiometry with air and bone conduction to characterize the type and degree of loss. Order hearing testing in any child with [[378|language delay]], learning problems, or suspected hearing loss, including after episodes of [[4|acute otitis media]] or [[258|[[160|otitis media]] with effusion]], since the associated conductive loss (typically 15–40 dB, average ~27 dB) can otherwise go unrecognized and compound developmental risk. When counseling families, emphasize that intervention initiated within the birth-to-3-year window has the greatest capacity to prevent downstream speech, language, academic, and social-emotional consequences, and direct them to family-facing resources (e.g., the AAP Early Hearing Detection and Intervention program, babyhearing.org) for education and support during the diagnostic and intervention process."
  },
  {
    "article_id": 250,
    "article_title": "Hypoxic-Ischemic Encephalopathy",
    "section_id": "e7d1df943f734f7b8de26677829cd672",
    "section_title": "Management",
    "variant": "clinical",
    "imperatives": 1,
    "content": "Therapeutic hypothermia has become the standard of care for moderate or severe neonatal HIE in the UK and many other countries and should be considered promptly once the diagnosis is suspected in an infant meeting perinatal-event, examination, Apgar, and blood-gas-acidosis criteria. Because much of the ultimate brain injury occurs during the secondary, reperfusion phase rather than the initial insult, early recognition and supportive stabilization matter: support respiration (these infants may be unable to sustain spontaneous respiration in severe disease), support blood pressure/cardiac output given the risk of myocardial dysfunction and hypotension, and correct the metabolic derangements that commonly accompany HIE — hypoglycemia, [[368|hypocalcemia]], and [[170|hyponatremia]]. Monitor for and manage seizures, and evaluate for coexisting multi-organ dysfunction (renal failure, DIC, persistent pulmonary hypertension of the newborn) since these commonly accompany severe encephalopathy. Staging severity (e.g., by the Levene system — consciousness, tone, presence/duration of seizures, ability to suck or sustain respiration) helps track clinical trajectory. Long-term follow-up is essential given the substantial risk of neurologic disability after moderate-to-severe HIE."
  },
  {
    "article_id": 251,
    "article_title": "Intimate Partner Violence",
    "section_id": "21bb8369346a49edaf228037eeaa1ba4",
    "section_title": "Approach when IPV is identified",
    "variant": "clinical",
    "imperatives": 2,
    "content": "When a screening tool is positive, first ensure privacy and safety before proceeding further — never discuss IPV in front of the partner, and consider removing children from the room. Clarify the circumstances. Use a reflect–empathize–teach–offer approach: reflect back what you heard (\"It looks like you've had some tough experiences with your partner\"); empathize and remove blame (\"The violence is not your fault. You do not deserve to be hurt this way.\"); teach why help matters (violence usually continues and worsens, it is a crime, and children can be hurt emotionally and physically by exposure); and offer intervention and connect the patient with community resources and options. Note state-specific mandatory reporting rules — in some states, a child's exposure to IPV is itself considered maltreatment and must be reported to CPS.\n\nFor an adolescent, screen for IPV at every health visit given how common and under-disclosed it is, and look actively for the warning signs above (avoidance of primary care, frequent ED visits, unexplained injuries, an overly attentive partner). Document findings thoroughly, including any injury without a consistent explanation or bruising at different stages of healing. When treating wounds, monitor for poor healing and signs of infection as medically indicated. Coordinate care around identified [[94|mental health]] needs (depression, anxiety, PTSD symptoms) with therapy modalities shown to help, and involve social work/behavioral health and community domestic-violence resources as part of the ongoing management and follow-up plan."
  },
  {
    "article_id": 252,
    "article_title": "Hepatitis B",
    "section_id": "6bc4cf90bcd14aeaad71a8027c4b3697",
    "section_title": "Perinatal and postexposure management at the bedside",
    "variant": "clinical",
    "imperatives": 1,
    "content": "For every newborn of an HBsAg-positive (or HBsAg-status-unknown) mother: give hepatitis B vaccine within 12 hours of birth AND HBIG 0.5 mL IM at a different anatomic site, then complete the vaccine series with doses 2 and 3 by 6 months of age. Do not delay breastfeeding initiation to wait for immunization. Test the infant for HBsAg and anti-HBs after completion of the series to confirm protection and rule out infection.\n\nFor a needlestick or other percutaneous/permucosal exposure: first establish the exposed person's vaccination/response status and the source's HBsAg status. Unimmunized exposed person with an HBsAg-positive source: give HBIG 0.06 mL/kg (max 5 mL) IM and start the vaccine series. Unimmunized with an HBsAg-negative or untested/unknown source: start the vaccine series alone. Previously immunized and known to have responded: no treatment needed. Previously immunized but a documented inadequate responder (anti-HBs <10 mIU/mL) with an HBsAg-positive source: give HBIG immediately, and either repeat HBIG in 1 month or begin reimmunization. After any acute infection, recheck HBsAg and HBV DNA several months later to confirm resolution rather than progression to chronic infection."
  },
  {
    "article_id": 253,
    "article_title": "Hypoplastic Left Heart Syndrome",
    "section_id": "f1d6a820bb1b46b3a63d440a06044cf7",
    "section_title": "Management at the bedside",
    "variant": "clinical",
    "imperatives": 3,
    "content": "Suspect HLHS in any neonate who develops sudden poor perfusion, cyanosis with a grayish hue, weakening pulses, or cardiogenic shock in the first days of life, particularly if antenatal ultrasound was not performed or was normal - the clinical deterioration typically coincides with ductal closure. Confirm with echocardiography looking for a small, apex-forming-failing left ventricle, aortic/mitral valve hypoplasia or atresia, a diminutive ascending aorta, and a left-to-right bowing, pressure-restrictive atrial septum.\n\nOnce suspected or confirmed, initial stabilization centers on maintaining ductal patency and balancing the pulmonary and systemic circuits. Titrate ventilation to keep PCO2 around 45-50 mmHg, and avoid supplemental oxygen when systemic saturation is running 70-80%, since oxygen acts as a pulmonary vasodilator and can divert flow away from the systemic circulation, worsening perfusion. If the atrial septum is restrictive on echo, escalate to catheter-based intervention - Rashkind balloon atrial septostomy, septal balloon dilation, or rarely blade septostomy - to relieve pulmonary venous congestion. Definitive care requires transfer to a center capable of staged single-ventricle surgical palliation."
  },
  {
    "article_id": 256,
    "article_title": "Osgood-Schlatter Disease",
    "section_id": "05fed3425ae846cc8086fede33438115",
    "section_title": "Management at the bedside",
    "variant": "clinical",
    "imperatives": 2,
    "content": "Diagnose Osgood-Schlatter disease clinically in an adolescent runner/jumper with gradual-onset pain and swelling localized to the tibial tubercle, worsened by quadriceps loading and relieved by rest - radiographs are not required but are reasonable if there is concern for an acute avulsion fracture, neoplasm, or if the presentation is atypical (e.g., acute onset with severe disability, which points instead toward a traumatic avulsion). \n\nStart with conservative, symptomatic treatment: activity modification (reducing but not necessarily fully stopping sport, guided by symptom severity), NSAIDs for pain, ice after activity, and a protective pad over the tibial tubercle for athletes returning to contact or kneeling activities. Add quadriceps and hamstring stretching and physical therapy. Counsel the family explicitly that this is self-limited but slow - resolution commonly takes 12-18 months and symptoms typically settle around age 14-15 as the tibial tubercle apophysis closes - so the goal is symptom control and continued function rather than a quick fix. Reserve escalation to bracing/casting or surgical referral for the rare case with a suspected patellar tendon avulsion, rupture, or growth arrest with recurvatum deformity."
  },
  {
    "article_id": 257,
    "article_title": "Obesity",
    "section_id": "8660409bc69f448880523041839166e5",
    "section_title": "Management approach",
    "variant": "clinical",
    "imperatives": 2,
    "content": "Assess severity using BMI percentile for age and sex together with the presence of current morbidities — a child with BMI above the 95th percentile, or above the 85th percentile with an obesity-related comorbidity (especially with a family history of such comorbidities), should be considered to have severe obesity and be evaluated accordingly. Screen actively for the comorbidities associated with pediatric obesity: check blood pressure with an appropriately sized cuff, and evaluate for type 2 diabetes, dyslipidemia, nonalcoholic fatty liver disease, [[311|obstructive sleep apnea]], and orthopedic complaints as clinically indicated.\n\nDeliver counseling as a family intervention rather than targeting the child alone: frame the plan around small, sustainable changes in diet and physical activity, emphasize that these changes take time to produce visible results, and normalize the fact that the whole family benefits from adopting a healthier lifestyle together. Be patient and honest with the family, and create room to discuss the emotional and psychological aspects of weight, diet, and exercise, since stigma and psychological morbidity are recognized complications in their own right, particularly in severe obesity. For children with severe obesity who do not respond to behavioral and family-based measures, especially those with significant comorbidities, refer for consideration of metabolic and bariatric surgery."
  },
  {
    "article_id": 258,
    "article_title": "Otitis Media With Effusion",
    "section_id": "bbf416ffc54e4385abdf2a1ebe6f9c81",
    "section_title": "Management at the bedside",
    "variant": "clinical",
    "imperatives": 2,
    "content": "Confirm the diagnosis with pneumatic otoscopy and tympanometry rather than treating empirically — look for decreased/immobile TM mobility (tympanometry type B) without the acute inflammatory signs (otalgia, fever, red/bulging TM) that would instead point to AOM. Once OME is confirmed, do not prescribe antibiotics. In an otherwise healthy child with no risk factors, the appropriate initial step is watchful observation, since most OME clears spontaneously within about 3 months.\n\nIf effusion persists beyond 3 months, obtain a hearing test; if it persists 3–6 months, or is bilateral, arrange a hearing test and refer for ENT consultation, since untreated persistent effusion risks conductive [[248|hearing loss]] that can affect behavior and delay speech/language development. Refer promptly (rather than waiting through the usual observation period) for children who are otitis-prone or who carry additional risk for developmental impact — permanent hearing loss independent of OME, suspected or diagnosed speech/[[378|language delay]], [[117|autism spectrum disorder]] or other pervasive developmental disorders, Down syndrome or craniofacial disorders, blindness or uncorrectable [[343|visual impairment]], cleft palate, or developmental delay — since these children have less capacity to compensate for even mild, fluctuating hearing loss. When surgery is indicated, tympanostomy tube insertion is the preferred procedure; reserve adenoidectomy for children with a separate indication such as nasal obstruction or chronic adenoiditis, and continue medical management of the mucosal disease alongside any surgical intervention until the condition resolves."
  },
  {
    "article_id": 259,
    "article_title": "Patent Ductus Arteriosus",
    "section_id": "9058fb9c21014b5a9ee6975cfe05ba9d",
    "section_title": "Management",
    "variant": "clinical",
    "imperatives": 1,
    "content": "Not all PDAs require closure, and the optimal approach among conservative, prophylactic, and symptomatic treatment strategies remains unsettled given a paucity of large randomized trials. For asymptomatic or borderline cases, supportive/conservative management includes a thermoneutral environment, maintaining hematocrit above 35% (increases pulmonary vascular resistance), higher positive end-expiratory pressure with a shorter inspiratory time, and moderate fluid restriction (110–130 mL/kg/day). Avoid loop diuretics, since they promote ductal patency via vasodilatory prostaglandin E2 release and add side effects; use thiazide diuretics instead if a diuretic is needed. Watchful expectancy is reasonable for a hemodynamically significant PDA in an infant who remains on the ventilator beyond the first week of life, since prophylactic and symptomatic pharmacologic approaches are not clearly superior in this setting.\n\nFor medical closure, indomethacin 0.2 mg/kg IV every 12 hours for 3 doses closes a clinically significant ductus in about two-thirds of cases; if it reopens or fails to close fully, a second course can be given, or surgical ligation considered if the infant remains symptomatic. In extremely low-birth-weight infants (<1000 g) at very high risk for a symptomatic ductus, a prophylactic regimen of indomethacin 0.1 mg/kg every 24 hours for 3–5 days starting on day 1 of life may be used, which may reduce severe [[299|intraventricular hemorrhage]], though without demonstrated mortality or neurodevelopmental benefit. Watch for the most common side effect, transient oliguria, managed with fluid restriction until urine output recovers; avoid indomethacin if the infant is hyperkalemic or has a creatinine above 2 mg/dL. Ibuprofen and acetaminophen are alternative medical options used successfully in many cases. Catheter-based (percutaneous) PDA closure is increasingly favored for infants weighing more than 1 kg. Surgical ligation is reserved for infants who fail prior medical/catheter therapy and remain symptomatic, or when the ductus diameter exceeds 1.5–2 mm.\n\nIn full-term infants, the PDA is structurally different and indomethacin is usually ineffective — monitor closely and consider surgical ligation at the earliest signs of significant [[285|congestive heart failure]]. Even without overt heart failure, ligation before age 1 year is recommended in full-term infants with a persistent PDA to prevent endocarditis and pulmonary hypertension."
  },
  {
    "article_id": 260,
    "article_title": "Patellofemoral Pain Syndrome",
    "section_id": "18f376c3e00c4d0f8fba7a166ac6a224",
    "section_title": "Management at the bedside",
    "variant": "clinical",
    "imperatives": 2,
    "content": "In an adolescent, especially a female athlete or runner, presenting with gradual-onset anterior/peripatellar knee pain worsened by stairs, squatting, running, or prolonged sitting with the knee flexed, and relieved by extension or walking, work through a focused exam: check for a medially displaced patella, tenderness of the patellar articular surface with the knee extended, crepitus, and a positive patellar stress/compression test, while specifically looking for red flags that argue against PFPS - significant effusion, true mechanical locking, or joint-line tenderness (which point toward a meniscal tear or other internal derangement warranting MRI rather than a PFPS diagnosis).\n\nIf the presentation is classic, treat empirically without radiographs: ice, relative rest/activity modification, NSAIDs for pain, and referral to a physical therapy program targeting the quadriceps (with attention to vastus medialis strengthening), hamstrings, and hip abductors/external rotators. Counsel the patient on any recent training changes (volume, surface, footwear) that may have precipitated the episode and address them as part of the return-to-activity plan. Reserve radiographs or further imaging for atypical presentations - significant swelling, mechanical symptoms, trauma, or failure to improve with a reasonable trial of conservative therapy."
  },
  {
    "article_id": 261,
    "article_title": "Pyelonephritis",
    "section_id": "129233a84b604ea7b28a50cd1f07c081",
    "section_title": "Diagnostics",
    "variant": "long",
    "imperatives": 1,
    "content": "Obtain a urinalysis and urine culture before starting antibiotics; in a child too young to provide a reliable clean-catch specimen, collect urine via straight catheterization. Significant bacteriuria in infants and children is generally defined as at least 50,000 CFU/mL of a single urinary pathogen, with a transition zone of 10,000–100,000 CFU/mL where the likelihood of true pyelonephritis versus asymptomatic bacteriuria increases. Imaging is used selectively and sequenced to limit radiation exposure: renal ultrasonography detects hydronephrosis or bladder/urinary tract anomalies and can be performed even during acute treatment; a micturating cystourethrogram (VCUG) is used to diagnose and grade [[271|vesicoureteral reflux]] and define bladder/urethral anatomy, typically performed 2–4 weeks after UTI treatment; DMSA scintigraphy detects cortical renal scarring (regions of decreased uptake with loss of contour or cortical thinning) and is deferred 3–4 months after treatment specifically to distinguish permanent scarring from reversible acute pyelonephritic changes. On CT, pyelonephritis appears as foci of diminished cortical enhancement; on ultrasound, altered cortical echogenicity with adjacent perinephric fluid may be seen."
  },
  {
    "article_id": 261,
    "article_title": "Pyelonephritis",
    "section_id": "2714af07312c45f18e97439c9e0e7f79",
    "section_title": "In short",
    "variant": "short",
    "imperatives": 1,
    "content": "- Pyelonephritis is upper [[8|urinary tract infection]] with renal parenchymal involvement; without parenchymal involvement the term pyelitis applies instead. It is the most common [[278|bacterial infection]] in febrile infants under 24 months without an obvious source.\n- Young children present atypically: vague abdominal discomfort rather than classic adult flank pain; fever may be the only sign. Consider it for a temperature ≥39°C (102.2°F) without another source lasting more than 48 hours in infants. Newborns may show only poor feeding, irritability, jaundice, or weight loss. All neonatal UTIs are considered pyelonephritis.\n- Higher-risk groups: infants younger than 6 months, females, uncircumcised males, and children with obstructive urologic abnormalities or bladder/bowel dysfunction.\n- On exam, pyelonephritis typically causes a high fever (≥39.4°C/103°F) with costovertebral angle tenderness on gentle percussion; obtain urinalysis and culture before starting antibiotics, via straight catheterization if the child cannot provide a clean catch.\n- Significant bacteriuria in infants/children is generally defined as ≥50,000 CFU/mL of a single urinary pathogen (the transition range where pyelonephritis becomes more likely than asymptomatic bacteriuria is 10,000–100,000 CFU/mL).\n- Outpatient oral therapy: cephalexin or cefadroxil if tolerating PO. Inpatient IV therapy: ceftriaxone 50 mg/kg/day (max 2 g/day) or cefotaxime 150 mg/kg/day divided q8h (max 6 g/day), since most E. coli are ampicillin-resistant; add ciprofloxacin (IV 18–30 mg/kg/day divided q8h, max 1.2 g/day, or oral 20–30 mg/kg/day divided q12h, max 1.5 g/day) if increased Pseudomonas risk; add ampicillin 100 mg/kg/day divided q6h (max 4 g/day) if Enterococcus risk or gram-positive rods on Gram stain.\n- Standard treatment duration is 7 days, with up to 14 days considered if not improving after 3 days of therapy; transition to oral antibiotics once clinically improved.\n- Imaging: renal ultrasound detects hydronephrosis/anatomic anomalies and can be done even during UTI treatment; micturating cystourethrogram (VCUG) for VUR diagnosis/grading is done 2–4 weeks after UTI treatment; DMSA scan for renal scarring is done 3–4 months after treatment to distinguish permanent scars from reversible acute changes.\n- Recurrent or unusual pyelonephritis with a renal mass, weight loss, and minimal urinary symptoms should raise concern for xanthogranulomatous pyelonephritis, associated with renal calculi, obstruction, and Proteus or E. coli infection, which usually requires total or partial nephrectomy."
  },
  {
    "article_id": 261,
    "article_title": "Pyelonephritis",
    "section_id": "0ebe1efb3a2947738921295c09efec93",
    "section_title": "Management at the bedside",
    "variant": "clinical",
    "imperatives": 3,
    "content": "Assess vital signs (including temperature and blood pressure) and weight, examine the abdomen for tenderness or a mass, gently percuss the costovertebral angle for tenderness, and examine the external genitalia for anatomic anomalies or irritation. Obtain a urinalysis and culture before giving any antibiotic — use straight catheterization if the child cannot give a reliable clean-catch sample — and treat bacteriuria of at least 50,000 CFU/mL of a single pathogen as significant.\n\nChoose therapy by clinical severity and risk factors. If the child tolerates oral intake and has no complicating risk factors, treat with oral cephalexin or cefadroxil. If the child needs inpatient IV therapy, start ceftriaxone 50 mg/kg/day (max 2 g/day) or cefotaxime 150 mg/kg/day divided every 8 hours (max 6 g/day) — do not rely on ampicillin alone given high rates of E. coli resistance. Add IV ciprofloxacin 18–30 mg/kg/day divided q8h (max 1.2 g/day) for Pseudomonas risk (prior Pseudomonas UTI, chronic catheter, neurogenic bladder), and add ampicillin 100 mg/kg/day divided q6h (max 4 g/day) empirically if there is an Enterococcus risk factor (GU instrumentation, renal anomaly) or gram-positive rods on Gram stain. Treat for 7 days total, extending to as long as 14 days if the child has not improved by day 3, and switch to oral therapy once clinically improving.\n\nSequence follow-up imaging to answer specific questions while minimizing radiation: get a renal ultrasound (even during acute treatment) to look for hydronephrosis or structural anomalies; if reflux is a concern, obtain a VCUG 2–4 weeks after treatment completes; if scarring is a concern, obtain a DMSA scan 3–4 months after treatment (not sooner, to avoid mistaking reversible acute changes for permanent scarring). If a child instead presents with a renal mass, weight loss, and minimal urinary symptoms, consider xanthogranulomatous pyelonephritis and involve urology, since this typically requires nephrectomy rather than antibiotics alone."
  },
  {
    "article_id": 262,
    "article_title": "Pyloric Stenosis",
    "section_id": "e969883b690946ad9a7b8ae469b4f8aa",
    "section_title": "Management at the bedside",
    "variant": "clinical",
    "imperatives": 2,
    "content": "In a 2-8-week-old infant with progressive, nonbilious, projectile vomiting who remains hungry after vomiting, examine for an epigastric \"olive\" mass and visible peristaltic waves, and send basic metabolic panel looking for hypochloremic, hypokalemic metabolic alkalosis. Confirm the diagnosis with abdominal ultrasound (pyloric channel length >18 mm, wall thickness >4 mm per ACR criteria); if the study is negative or equivocal but suspicion remains high, repeat it in about a week rather than ruling out the diagnosis on one negative scan.\n\nOnce confirmed, this is not a surgical emergency - stabilize first. Correct dehydration with isotonic fluids and specifically correct hypokalemia and metabolic alkalosis before proceeding to the operating room, since anesthesia in an alkalotic, hypokalemic infant carries risk (including apnea). Once fluids and electrolytes are normalized, arrange pyloromyotomy (open or laparoscopic) - it is curative with mortality under 0.5%. Advance to full oral feeds relatively quickly postoperatively per surgical team protocol. Keep the differential in mind if the clinical or lab picture doesn't fit cleanly: acidosis rather than alkalosis should prompt evaluation for adrenal insufficiency or an inborn error of metabolism rather than assuming pyloric stenosis."
  },
  {
    "article_id": 263,
    "article_title": "Tension Headache",
    "section_id": "156384a4e51249f4a86c389f6c020164",
    "section_title": "Approach at the bedside",
    "variant": "clinical",
    "imperatives": 1,
    "content": "In a child or adolescent presenting with recurrent bilateral, dull, pressing headache that worsens through the day, is not aggravated by routine activity, and lacks significant nausea/vomiting or more than one of photophobia/phonophobia, work through the ICHD-3 frequency classification (infrequent episodic, frequent episodic, or chronic) to characterize the headache and guide counseling and follow-up. Examine specifically for pericranial muscle tenderness on palpation, which supports the diagnosis, and take a careful history for red flags that would point toward a secondary cause instead - progressive course, nausea/vomiting/ataxia/visual changes (concerning for a mass lesion), abnormal eye movements or focal weakness (concerning for hemorrhage), fever or meningeal signs (concerning for CNS infection), or a history of trauma.\n\nAsk specifically about the frequency and type of any headache medications being used, since frequent use of simple analgesics, NSAIDs, triptans, or opioids can itself cause medication-overuse headache and should be addressed as part of management. If the headache began abruptly and has been present daily since within 3 days of onset, consider new daily persistent headache (NDPH) rather than standard TTH, since this distinct entity is defined specifically by that abrupt onset pattern. Document headache frequency systematically at follow-up, since crossing the threshold of more than 15 days per month for 3 months redefines the headache as chronic and may change the management approach."
  },
  {
    "article_id": 264,
    "article_title": "Respiratory Failure",
    "section_id": "4762d91e11b3416582f7f8f61ab56eac",
    "section_title": "In short",
    "variant": "short",
    "imperatives": 1,
    "content": "- Respiratory failure = oxygenation and/or ventilation insufficient to meet the body's metabolic demands; it is often the end stage of [[151|respiratory distress]] if not intercepted early.\n- Conceptually it results from a \"respiratory balance\" failure: ventilatory muscle power and central respiratory drive must overcome the respiratory load — failure occurs when muscle power/central drive falls and/or load rises enough that adequate ventilation cannot be sustained.\n- Formal criteria (2 clinical + 1 laboratory finding suggest respiratory failure): clinical — tachypnea/bradypnea/apnea/irregular respirations, pulsus paradoxus >30 mm Hg, stridor/wheeze/grunting, severe retractions with accessory muscle use, cyanosis in 40% O2, altered consciousness, weak/absent cough or gag, poor muscle tone; laboratory — PaO2 <60 mmHg in 60% O2, PaCO2 >60 mmHg and rising, pH <7.3.\n- Infants/toddlers are physiologically predisposed: proportionally large tongue, narrow subglottic airway, small/compliant airways, fewer alveoli, more compliant chest wall, more fatigable respiratory muscles, and an immature respiratory center.\n- Site of pathology predicts the physical exam pattern: extrathoracic airway obstruction produces stridor with markedly increased retractions; intrathoracic (extrapulmonary or intrapulmonary) obstruction produces wheezing; alveolar/interstitial disease produces grunting and crackles with the most severe tachypnea and retractions.\n- Etiologies span 5 categories: upper airway obstruction (adenotonsillar hypertrophy, choanal atresia, croup, [[331|epiglottitis]], foreign body, retropharyngeal abscess), lower airway obstruction ([[107|asthma]], [[3|bronchiolitis]], bacterial tracheitis), parenchymal lung disease (ARDS, aspiration, [[150|pneumonia]], pulmonary contusion), pulmonary edema (heart failure), neuromuscular weakness (botulism, Guillain-Barré, muscular dystrophy, [[332|spinal cord injury]], SMA), and thoracic mass effect (effusion/empyema, [[396|pneumothorax]], tumor, ascites).\n- Spirometry distinguishes restrictive from obstructive disease: both reduce FEV1 and vital capacity, but the FEV1/vital-capacity ratio stays normal in restrictive disease and falls in obstructive disease; obstructive disease also causes air trapping with elevated functional residual capacity and residual volume.\n- In [[184|cystic fibrosis]], about 90% of patients ultimately die of respiratory failure, often precipitated by a pulmonary exacerbation, hemoptysis, pneumothorax, or nonpulmonary surgery; noninvasive ventilation is increasingly used to rest respiratory muscles in this population.\n- Give supplemental oxygen cautiously in chronic CO2 retainers (e.g., advanced CF), since it can suppress hypoxic ventilatory drive.\n- Acute respiratory failure from a severe infectious illness can be recovered from fully with aggressive treatment — intensive antibiotics, postural drainage, oxygen, and ventilatory support as needed continued for 1–2 weeks after the patient returns to baseline."
  },
  {
    "article_id": 265,
    "article_title": "Small For Gestational Age",
    "section_id": "c1b474a8481946de9ad31f1c18a7518c",
    "section_title": "Follow-up and management",
    "variant": "clinical",
    "imperatives": 1,
    "content": "When an SGA infant is identified, investigate for the underlying category of cause — maternal, placental, or fetal — since this shapes counseling and follow-up; congenital (TORCH) infection and chromosomal/dysmorphic causes should be considered, particularly with symmetric growth restriction (weight, length, and head circumference all reduced together). Assess all four anthropometric measures (weight, length, head circumference, ponderal index) rather than weight alone, since the pattern of restriction points toward different causes and prognoses.\n\nScreen for and monitor [[97|neonatal hypoglycemia]], since SGA infants are at particular risk through a primary glycogen storage deficit distinct from the mechanisms seen in AGA or LGA infants. For long-term growth, reassure families that the majority of SGA children — 85–90% — catch up to their genetic height potential by age 4 years; for the minority who do not catch up spontaneously, growth hormone therapy has been shown to be of benefit and should be considered. When any child is later evaluated for [[103|short stature]], always review the pregnancy and delivery history, since an evaluation for short stature is considered incomplete without this context."
  },
  {
    "article_id": 267,
    "article_title": "Thermal Burns",
    "section_id": "dfe06d286c47492c9f0ca50e0b3ad854",
    "section_title": "In short",
    "variant": "short",
    "imperatives": 1,
    "content": "- Burns are classified by depth: first-degree (superficial, epidermis only — erythematous, painful, dry, heals within 2 weeks, no scarring); second-degree/partial-thickness (superficial: pink, moist, painful, heals <3 weeks; deep: paler, drier, less painful from nerve destruction, often speckled from thrombosed vessels, heals >3 weeks with scarring, may need grafting); third-degree/full-thickness (destroyed dermis, insensate, yellowish/depressed appearance).\n- Mechanisms: scalds (hot liquid/steam), contact (hot objects), flame, chemical (strong acid/alkali), and electrical.\n- Water-temperature/time-to-full-thickness-burn relationship: 120°F takes about 10 minutes, 130°F about 30 seconds, 140°F about 5 seconds, 150°F about 2 seconds, 158°F about 1 second — a normal child's withdrawal reflex from water above 120°F should leave only superficial fingertip/toe burns, so a full-thickness immersion burn is rarely accidental.\n- Fluid resuscitation for significant burns uses the Parkland formula: IV fluid (mL) = weight (kg) × %TBSA burned × 4; give half in the first 8 hours and the remaining half over the next 16 hours, in addition to maintenance fluids.\n- Burn center referral criteria: partial-thickness burns >10% TBSA, full-thickness burns >5% TBSA, any third-degree burn, electrical burns (high-tension wires or lightning), chemical burns, [[190|inhalation injury]] regardless of TBSA, burns of the face/hands/feet/perineum/genitals/major joints, inadequate home/social environment, suspected abuse or neglect, preexisting conditions complicating recovery, and associated injuries (e.g., fractures).\n- Prevention measures shown to help: flame-retardant clothing, smoke detectors, setting water heater thermostats to 48.9°C (120°F), and prohibiting cigarette smoking around children.\n- With dedicated burn-center care, survival of at least 80% is achievable even with burns covering 90% of total body surface area (TBSA) in children and young adults; death is more likely when irreversible anoxic brain injury occurred at the time of the burn.\n- Assess for inhalation injury with any thermal burn — exposure to toxic gases (carbon monoxide, hydrogen cyanide) and direct airway injury from high-temperature gas, steam, or hot liquid inhalation; for chemical burns, identify the causative agent and irrigate promptly, consulting ophthalmology urgently for any chemical eye burn.\n- Cigarette burns are the most common thermal injury to the cornea in childhood, typically in 2-4 year olds, usually when a toddler runs into a cigarette held at eye level by an adult; the eyelid-closure reflex and Bell phenomenon usually limit corneal damage.\n- Emergency triage stratifies by severity: critical/resuscitation-room criteria include inhalational injury, [[142|altered mental status]], burns >25% TBSA, and facial burns with singed nasal hairs or hoarse voice; acute-level criteria include any full-thickness burn, partial-thickness burns >15% TBSA, and burns to the face or genitalia."
  },
  {
    "article_id": 267,
    "article_title": "Thermal Burns",
    "section_id": "f6a3209f02c947adb5df5101011e50e9",
    "section_title": "Initial management",
    "variant": "clinical",
    "imperatives": 1,
    "content": "Estimate burn depth and TBSA immediately, and assess for [[190|inhalation injury]] (toxic gas exposure — carbon monoxide, hydrogen cyanide — and direct thermal airway injury) with any significant thermal burn, since this can dictate airway management ahead of the skin injury itself. For chemical burns or IV extravasation, identify the causative agent and irrigate promptly; involve ophthalmology emergently for any chemical or thermal burn to the eye.\n\nCalculate IV fluid resuscitation using the Parkland formula for significant burns: fluid volume (mL) = weight (kg) × %TBSA burned × 4, giving half over the first 8 hours post-injury and the remainder over the next 16 hours, in addition to maintenance fluids. Triage by severity: send to the resuscitation room for inhalational injury, altered mental status, chest pain/arrhythmia, or major associated trauma; treat as critical for facial burns with singed nasal hairs or hoarse voice, burns over 25% TBSA, or electrical burns with loss of consciousness or seizure; treat as acute for any full-thickness burn, partial-thickness burns over 15% TBSA, or burns involving the face or genitalia.\n\nRefer to a dedicated burn center for partial-thickness burns over 10% TBSA, full-thickness burns over 5% TBSA, any third-degree burn, electrical burns from high-tension wires or lightning, chemical burns, any inhalation injury regardless of TBSA, burns involving the face, hands, feet, perineum, genitals, or major joints, burns in a child with a preexisting condition that could complicate recovery, associated injuries such as fractures, an inadequate home or social environment, or any suspicion of abuse or neglect — including immersion burns with a sharp demarcation line inconsistent with a normal withdrawal reflex. Reassess burns serially, since apparent depth can worsen with secondary infection, trauma, or hypoperfusion, and edema can initially mask a full-thickness injury as superficial."
  },
  {
    "article_id": 269,
    "article_title": "Tic Disorder",
    "section_id": "039a0eeae499461aa2aa7a4ab1976d72",
    "section_title": "Approach at the bedside",
    "variant": "clinical",
    "imperatives": 1,
    "content": "In a school-age child brought in for repetitive blinking, sniffing, throat clearing, or similar movements, take a history focused on onset, waxing/waning course, suppressibility, presence of a premonitory urge, and whether both motor and vocal tics are present and for how long - this determines whether the picture fits transient tic disorder (4 weeks to 1 year), chronic tic disorder (motor or vocal, >1 year), or Tourette syndrome (both motor and vocal, >1 year). Perform a neurologic exam, which should be normal aside from the tics; neuroimaging is not indicated for a typical presentation.\n\nScreen specifically for common comorbidities at the same visit - ADHD and OCD are present in about half of Tourette syndrome patients, and anxiety, depression, and learning difficulties are also common - since these comorbidities, not tic severity itself, are usually the bigger driver of functional impairment and should be actively treated. For most children with mild tics and no significant distress, reassurance and education alone are appropriate; avoid over-medicalizing a transient, self-limited presentation. If tics are causing meaningful distress or impairment, start with an alpha-2 agonist (clonidine or guanfacine) as first-line pharmacotherapy and pair it with behavioral therapy. If a child on stimulant medication for ADHD develops new tics, reassure the family that this reflects unmasking of an underlying predisposition rather than a medication-caused tic disorder - this is a common point of parental concern worth addressing directly."
  },
  {
    "article_id": 270,
    "article_title": "Type 1 Diabetes",
    "section_id": "b5a3a1be841e4c40b9745701aaf79468",
    "section_title": "Approach at diagnosis and initial management",
    "variant": "clinical",
    "imperatives": 1,
    "content": "In a child presenting with polydipsia, polyuria, and weight loss (with or without overweight/obesity - remember obesity does not rule out T1D), confirm the diagnosis using ADA criteria: fasting glucose ≥126 mg/dL, 2-hour OGTT glucose ≥200 mg/dL, random glucose ≥200 mg/dL with classic symptoms, or HbA1c ≥6.5%. Assess for DKA at presentation given its associated morbidity and mortality, and remember that ketosis alone does not distinguish T1D from type 2 diabetes - about a third of adolescents ultimately diagnosed with type 2 diabetes present with ketones and about 6% present in DKA. If the type of diabetes is unclear (e.g., an overweight or obese adolescent with new hyperglycemia), send pancreatic autoantibodies (islet cell antigen 512, insulin, GAD, ZnT8) to help confirm an autoimmune process, and keep monogenic diabetes on the differential if there is an autosomal dominant family history, early onset, non-obese phenotype, or preserved C-peptide.\n\nOnce T1D is confirmed, initiate insulin therapy - either a basal-bolus regimen (long-acting basal insulin such as glargine or detemir, plus short-acting boluses for meals and correction) or an insulin pump - alongside structured diabetes education covering nutrition, exercise, and self-monitoring of blood glucose. If the family is using a fixed-dose (non-analog basal) regimen, counsel on eating at consistent times aligned with the insulin's peak action; if using a pump or long-acting basal analog, more flexible meal timing is possible. Set the long-term treatment target of HbA1c below 6.5% (48 mmol/mol) to reduce the risk of long-term vascular complications, and build a team approach (medical, nutritional, and psychosocial support) given the lifelong self-management burden T1D places on the child and family."
  },
  {
    "article_id": 271,
    "article_title": "Vesicoureteral Reflux",
    "section_id": "4c60fc5385d6448e9ad6e31f263f7f22",
    "section_title": "Approach at the bedside",
    "variant": "clinical",
    "imperatives": 4,
    "content": "Suspect VUR in a child presenting with a febrile urinary tract infection (especially a girl, given the roughly 30% prevalence of VUR in this group) or in an infant found to have antenatal hydronephrosis (5-15% will have VUR). Confirm and grade with a voiding cystourethrogram, using the International Reflux Study grading system (I-V) to communicate severity, and consider a radionuclide cystogram for lower-radiation follow-up imaging once the initial diagnosis and anatomy are established.\n\nFor most children, particularly those with lower-grade reflux diagnosed at a younger age, a reasonable approach is expectant management: antibiotic prophylaxis to reduce febrile UTI risk while watching for spontaneous resolution, which occurs in about 80% of primary VUR cases as the ureterovesical junction matures. Reserve surgical correction (open or endoscopic) for higher-grade reflux, breakthrough febrile infections despite prophylaxis, or reflux that persists without improvement over serial follow-up. Counsel families that the goal of management is preventing recurrent [[261|pyelonephritis]] and renal scarring - since scarring, not the reflux itself, is what drives the downstream risk of hypertension and [[284|chronic kidney disease]] - so prompt treatment of any febrile UTI in a child with known VUR is a priority regardless of which management strategy (prophylaxis vs. surgery) is chosen."
  },
  {
    "article_id": 272,
    "article_title": "Traumatic Brain Injury",
    "section_id": "9544cd74a3f846039cad8640b43daa89",
    "section_title": "Management at the bedside",
    "variant": "clinical",
    "imperatives": 2,
    "content": "Treat any patient with altered memory, alertness, irritability, new seizures, or unexplained poor feeding/emesis after a plausible mechanism as having possible TBI until proven otherwise. Identify and correct the systemic factors that drive secondary injury as a priority — hypoxia, hypotension, hypoglycemia, and hyperthermia — since these are directly actionable and worsen brain injury independent of the primary insult. Do not rely on the Cushing triad (bradycardia, hypertension, apnea) to recognize rising intracranial pressure, since it appears late and is often incomplete; treat nonspecific changes in mental status as a possible early warning sign instead.\n\nObtain follow-up imaging within 12 hours of presentation in a child with an identified traumatic intracranial injury, specifically to catch progression of contusion/hemorrhage and early radiographic signs of worsening cerebral edema (sulcal effacement at the vertex, smaller basal cisterns) before clinical deterioration occurs — by the time clinical signs of herniation or rising ICP appear, the window to interrupt progressive injury has narrowed considerably. For severe TBI requiring ICU-level care, follow tiered guideline-based management: correct systemic derangements first, and escalate to second-tier therapies for refractory intracranial hypertension only when first-tier measures are inadequate, using advanced monitoring to guide these interventions when available.\n\nWhen evaluating any infant or young child with TBI, especially with a mechanism that seems inconsistent with the severity of injury, add an ophthalmologic exam for retinal hemorrhages and a skeletal survey for occult fractures to evaluate for inflicted injury, and involve child protective services and law enforcement promptly if abuse is suspected — outcomes tend to be worse in this population, and early recognition protects both the current patient and any siblings. On longer-term follow-up, monitor growth and screen for hypopituitarism symptoms in children recovering from significant TBI, since endocrine dysfunction can emerge post-injury and may improve substantially after the first year if identified and managed."
  },
  {
    "article_id": 273,
    "article_title": "Acute Gastroenteritis",
    "section_id": "ddb4ab6e20fe46d4bddddbc372b5a974",
    "section_title": "Approach at the bedside",
    "variant": "clinical",
    "imperatives": 2,
    "content": "In a child presenting with vomiting and/or three or more loose stools per day, the central clinical task is assessing the degree of dehydration, since this - not the specific pathogen - drives management decisions and correlates with illness severity; reassess hydration status at follow-up to confirm rehydration efforts are working. For a well-appearing child with a typical, self-limited-appearing presentation (fever, crampy pain, watery diarrhea, hyperactive bowel sounds, no blood), no laboratory testing is routinely needed and supportive care with attention to rehydration is appropriate.\n\nLook specifically for features that should prompt reconsideration of a bacterial cause and possibly further workup: hematochezia, high fever in an older child, or recent international travel to a developing country. Ask about recent shellfish consumption if the presentation is unusual or severe, since this points to Vibrio, particularly in a patient with underlying liver disease, low gastric acidity, or [[122|immunodeficiency]] who would be more susceptible. Persistent high fever and lethargy are red flags for more severe or systemic illness rather than routine viral AGE and warrant closer evaluation. Counsel families on the expected self-limited course of viral AGE, the importance of monitoring hydration status at home, and when to seek reassessment (worsening dehydration, persistent high fever, lethargy, or blood in the stool)."
  },
  {
    "article_id": 275,
    "article_title": "Achondroplasia",
    "section_id": "22f26ea0dd2f4e9da15230ef74462968",
    "section_title": "Health supervision and monitoring",
    "variant": "clinical",
    "imperatives": 2,
    "content": "Children with achondroplasia require structured, condition-specific health supervision rather than standard well-child monitoring alone, per American Academy of Pediatrics guidance developed and twice revised specifically for this population. Use achondroplasia-specific growth curves rather than standard population curves to track height, weight, and head circumference, and monitor weight-for-height carefully given how common and disabling obesity becomes in older children with this condition.\n\nScreen proactively for the serious but less common complications rather than waiting for symptoms: assess infants for risk of cervicomedullary-junction compression, since this is a recognized cause of increased infant mortality in achondroplasia; monitor for hydrocephalus; and evaluate the thoracolumbar spine for kyphosis, intervening with positioning guidance early since fixed, angular kyphosis is considered probably preventable if caught before it becomes structural (most infantile gibbus resolves spontaneously by walking age without intervention). Screen for [[311|obstructive sleep apnea]] and, less commonly, central sleep apnea, and arrange hearing screening given the frequency of middle-ear dysfunction and associated [[248|hearing loss]] in this population. If surgery is needed for any reason, involve a team experienced in the specific perioperative considerations for skeletal dysplasia, given the airway and cervicomedullary risks described above. Reassure families that cognitive development and life expectancy are generally normal, while being clear and proactive about the orthopedic, respiratory, and neurologic surveillance this condition specifically requires."
  }
]