Which investigation best confirms Acute severe asthma?
Answer and explanation
Correct answer: C. Peak expiratory flow measurement
- Step 1: The test that best confirms Acute severe asthma is: peak expiratory flow measurement.
Answer
Peak expiratory flow measurement.
Why not the others: 'Chest radiograph': it cannot quantify airflow obstruction. 'Bronchoscopy': it is invasive and not needed in an acute attack. 'D-dimer': it screens for embolism, not bronchospasm.
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