au-amc MCQ (SBA): Acute severe asthma in ED

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EasyRespiratory,EmergencyAcute severe asthma in EDau-amcau-acem

A 22-year-old man with known asthma presents to ED with severe dyspnoea, inability to complete sentences, RR 32 breaths/min, SpO₂ 90% on room air and widespread wheeze. There is no stridor. What is the most important immediate treatment?

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au-amc MCQ: Acute severe asthma in ED — Answer & Explanation | iatroX