Anaes SAQs · Vaporisers
Temperature compensation in the plenum vaporiser
Final SAQ — vaporisation is endothermic and cools the chamber, lowering the SVP and the output. The bimetallic strip and the liquid-in-bellows compensate by raising the chamber flow as the chamber cools.
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ANZCAFRCAABAEDAIC
Prompt
Describe how the plenum vaporiser maintains a constant output concentration despite the cooling produced by the vaporisation.
Question
Describe how the plenum vaporiser maintains a constant output concentration despite the cooling produced by the vaporisation. (Question stem restated — the worked answers below carry the primary-source citations.)
References1ShowHide
- [2]Tiviraj S, et al. Development of An Assessment Test for An Anesthetic Machine. J Med Assoc Thai, 2016.PMID 27501622