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Carbon monoxide rebreathing — UKMLA MCQ

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HardAnti-DopingCarbon monoxide rebreathingUKMLA

A cyclist asks about carbon monoxide rebreathing in 2026. The team claims it is a diagnostic test, but no medical protocol, supervision or pulmonary-diffusion indication is documented. What is the most appropriate investigation?

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Correct answer: E — Review WADA 2026 method rules and obtain specialist anti-doping advice

The 2026 List prohibits non-diagnostic carbon monoxide administration. Diagnostic use is treated differently when performed under appropriate medical or scientific supervision. Anti-doping advice is needed before any exposure.

Reference: WADA Prohibited List 2026; UKAD update