Machine Leak Common Sources — FRCA Final MCQ

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EasyAnaesthetic Equipment & SafetyMachine Leak Common SourcesFRCA Final

Anaesthetic machine leak test fails at 30 cmH2O with APL closed. Most likely source?

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Correct answer: A — Loose vaporiser filler cap

Loose vaporiser filler cap = most common leak source. Even with vaporiser off, filler port is part of sealed pathway. Other: loose circuit connections, poorly seated absorber, cracked O-rings. Leak >150 mL/min at 30 cmH2O = fail.

Reference: Association of Anaesthetists – 2023 – Checking anaesthetic equipment