Nelson Textbook of Pediatrics 22nd Edition | Approach to chronic cough, recurrent wheeze, persistent stridor, recurrent lung infiltrates; differential diagnosis: asthma, protracted bacterial bronchitis (PBB), cystic fibrosis, PCD, aspiration, tic cough, immunodeficiency.
🌐 paeds.online — Pakistan's Pediatric Platform| Symptom | Common Causes | Key Diagnostic Tests |
|---|---|---|
| Chronic cough (>4 weeks) | Asthma, PBB, UACS, GERD, tic cough, CF, PCD | CXR, spirometry, sweat test, PCD panel, bronchoscopy |
| Recurrent wheeze | Asthma, viral bronchiolitis, CF, PCD, foreign body, VCD | Spirometry ± bronchodilator, methacholine, chest CT |
| Persistent stridor | Laryngomalacia, subglottic stenosis, VCP, vascular ring | Flexible laryngoscopy, airway fluoroscopy, CT/MRI |
| Recurrent infiltrates | Aspiration, CF, PCD, immunodeficiency, sequestration | Swallow study, sweat test, immunoglobulins, CT angio |