Laser airway — FRCA Primary MCQ

Correct answer: A — Airway laser fire risk

Fuel, oxidiser and ignition source create airway fire risk. Desflurane heated pressurised vaporiser is less appropriate because it would fit a different clinical clue or a separate anaesthetic problem. Sampling tube transit delay is less appropriate because it would fit a different clinical clue or a separate anaesthetic problem. Ferromagnetic projectile risk is less appropriate because it would fit a different clinical clue or a separate anaesthetic problem. Microshock through an intracardiac conductor is less appropriate because it would fit a different clinical clue or a separate anaesthetic problem. In Primary FRCA physics and measurement, the safest answer is the one that follows the underlying physical principle and the limitations of the device.

Reference: Davis and Kenny Basic Physics and Measurement in Anaesthesia; RCoA Primary FRCA syllabus