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PE25.1-6 | Respiratory System — Assignment
CLINICAL SCENARIO
You will analyse a clinically realistic paediatric respiratory emergency case from an Indian hospital setting, demonstrating your ability to apply knowledge of upper and lower respiratory tract infections, stridor, and foreign body aspiration. This assignment develops systematic clinical reasoning skills essential for managing the spectrum of paediatric airway emergencies — from AOM and croup to epiglottitis and bronchiolitis — that are among the most common life-threatening presentations in a paediatrician's practice.
Instructions
Read the case scenario below carefully. Write a structured case analysis addressing all sections in the scaffolding. Support your clinical reasoning with reference to Ghai Essential Pediatrics, Nelson Textbook of Pediatrics, IAP guidelines, and IMNCI protocols where applicable. Use the word guidance for each section. Submit as a single document with clearly labelled section headings.
Length: 1,000–1,400 words total (excluding headings and the case scenario text)
What to Submit
1. Diagnosis and Differential Diagnosis
Guidance: State your most likely diagnosis with justification from the history and examination findings. List three differential diagnoses in order of likelihood. For each differential, state ONE key feature present and ONE key feature that argues against it. Specifically address why epiglottitis is or is not the diagnosis in this child.
2. Aetiology and Pathophysiology
Guidance: Identify the most likely causative organism(s) for your diagnosis. Describe in 150–200 words the pathophysiological mechanism causing the stridor and barky cough. Include the relevant anatomy (subglottis vs. supraglottis) and explain why the steeple sign appears on X-ray.
3. Severity Assessment and Immediate Management
Guidance: Apply the Westley Croup Score to this child — calculate the score based on the examination findings given and determine the severity category. State your immediate management plan, specifying drug names, doses (in mg/kg), route, and timing. What specific danger signs would prompt you to call for anaesthesia and ENT support immediately?
4. Broader Respiratory Context — IMNCI Application
Guidance: This child's RR is 46/min. Apply IMNCI fast-breathing criteria to classify his respiratory status for this age group. If the child had been 8 months old with RR 52/min, no chest indrawing, and no danger signs, how would the IMNCI classification and treatment differ? What antibiotic would you prescribe at the primary health centre level for IMNCI-classified 'pneumonia' in a child aged 2–59 months?
5. Parent Education and Prevention
Guidance: Write a brief structured parent counselling note (as you would give verbally in clinic) covering: (a) what croup is and why it happened; (b) home danger signs requiring immediate return to hospital; (c) one vaccine-preventable cause of acute stridor in children and the Indian NIS schedule for its prevention; (d) age-appropriate choking prevention advice for parents of toddlers.
Grading Rubric — Paediatric Respiratory Emergency Case Analysis Rubric
| Criterion | Points | Full-marks descriptor |
|---|---|---|
| Diagnosis and differential reasoning | 20 pts | Correct diagnosis (croup/LTB) with full justification from history + exam. Three differentials with specific discriminating features for each; epiglottitis distinction clearly and accurately addressed. |
| Aetiology and pathophysiology accuracy | 20 pts | Correct organism (parainfluenza virus type 1 primary). Clear mechanistic explanation of subglottic oedema causing stridor; correct anatomy (laryngeal vs. pharyngeal); steeple sign explained accurately. |
| Westley Score calculation and management plan | 25 pts | Westley score correctly calculated (expected: stridor at rest 2 + retraction 1 + air entry 0 + cyanosis 0 + level of consciousness 0 = moderate, score 3–4). Dexamethasone dose (0.15–0.6 mg/kg oral) and nebulised adrenaline dose correctly stated with route. Danger signs for escalation clearly enumerated. |
| IMNCI application and first-line antibiotic knowledge | 20 pts | IMNCI fast-breathing cut-off correctly applied to 18-month-old (≥40/min → RR 46 = pneumonia classification). Correct 8-month-old scenario classification (≥50/min threshold; RR 52 = pneumonia; oral amoxicillin 40 mg/kg/day ×5 days). Both age-group thresholds stated. |
| Parent education and prevention counselling | 15 pts | All four components addressed: croup explanation in lay language; at least 4 danger signs for return; Hib vaccine for epiglottitis prevention with correct NIS schedule (6, 10, 14 weeks + 18 months booster); age-appropriate choking prevention (avoid small objects/round foods for toddlers). |
PEER REVIEW
Assess your peer's work using the five criteria in the rubric. For each criterion, assign a score and write 2–3 sentences explaining your rating. Focus on: (a) accuracy of clinical information (doses, scores, thresholds); (b) depth of mechanistic reasoning vs. surface description; (c) practical applicability of parent counselling. Note one strength and one specific area for improvement in your summary comment.