Anaes Vivas · Anaesthetic ventilators
Equipment viva — the bellows anaesthetic ventilator
An equipment viva on the bellows ventilator — the driving gas compresses the bellows in the bottle, the standing bellows rises on expiration and falls on inspiration, and it is a leak detector (a disconnect collapses it).
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Target exams
ANZCAFRCAABAEDAIC
Prompt
A traditional bellows (bag-in-bottle) anaesthetic ventilator on the machine. Describe how it works, what makes the bellows stand rather than hang, and why that matters.
Stimulus
This is a traditional bellows anaesthetic ventilator (the bag-in-bottle type). Describe how it works, why the bellows stands rather than hangs, and what the bellows tells you about the circuit integrity.
References2ShowHide
- [2]Coisel Y, et al. How to choose an anesthesia ventilator? Ann Fr Anesth Reanim, 2014.PMID 25138358
- [25138359]Bersten AD, Soni N (eds) Oh's Intensive Care Manual. 8th edition, Elsevier, 2018.