Anaes Vivas · The anaesthetic machine
Equipment viva — the flowmeters and the hypoxic guard
An equipment viva on the rotameters — the principle (the tapered tube and the bobbin), the reading (the top of the bobbin), the gas-specificity, the hypoxic guard (the mechanical link preventing the hypoxic mixture), and the oxygen failure device.
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ANZCAFRCAABAEDAIC
Prompt
A bank of mechanical flowmeters (the rotameters) for oxygen, nitrous oxide and air, with the linked oxygen-nitrous-oxide control (the hypoxic guard).
Stimulus
A bank of mechanical rotameters for oxygen, nitrous oxide and air, with the linked oxygen-nitrous-oxide control. Describe the principle, the reading convention, the gas-specificity, and the safety devices (the hypoxic guard and the oxygen failure device).
References2ShowHide
- [1]AAGBI. Checking anaesthetic equipment 2012. Anaesthesia, 2012.PMID 22563957
- [22563958]Bersten AD, Soni N (eds) Oh's Intensive Care Manual. 8th edition, Elsevier, 2018.