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A 14-month-old girl presents with 2 days of increasing work of breathing and wheeze following a viral prodrome. Her initial observations are as follows : T 38.2Β°C HR 140 RR 65 Sats 95%RA There is moderate WOB on exam with bilateral wheeze and creps with good air entry on auscultation. You feel she most likely has bronchiolitis.

1. List three potential differential diagnoses for this presentation. 3 marks

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2. List five clinical features you would assess in an infant with bronchiolitis and the finding consistent with severe disease. 5 marks

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3. List four risk factors associated with the development of severe bronchiolitis in infancy. 4 marks

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