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Inducible laryngeal obstruction — SCE Respiratory MCQ

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HardAsthmaInducible laryngeal obstructionSCE Respiratory

A runner has exertional cough and chest tightness with normal resting spirometry. Which test best confirms exercise-induced bronchoconstriction?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: E — Standardised exercise or eucapnic voluntary hyperpnoea challenge

Exercise-induced bronchoconstriction requires objective demonstration of a post-challenge fall in FEV1. A standardised exercise or eucapnic voluntary hyperpnoea test reproduces the relevant stimulus; symptoms alone cannot distinguish it from exercise-induced laryngeal obstruction.

Reference: https://www.brit-thoracic.org.uk/quality-improvement/guidelines/