Proposed Hypoxic "O2" Pipeline Algorithm
Rationale and discussion of the observations and consequences
Note that this implies that an O2 analyzer is being used
(b) Disconnect the patient from the circuit at the elbow connector with the gas sampling line still attached to the elbow connector
(c) Ventilate (or ask for assistance to manually ventilate) with a
self-inflating resuscitation bag (SIRB or "Ambu" bag) using
room air. If the patient needs O2-enriched air, use O2 from a stand-alone
(e) Open the O2 cylinder - in most machines, a sound or cessation of the audible alarm in (d) should indicate that O2 cylinder is open and not empty
(f) To clear the anesthesia machine of the hypoxic gas, press the oxygen
flush button until the O2 analyzer displays increasing FiO2 values
(h) Reconnect breathing circuit to patient, resume ventilation (mechanical or spontaneous) using O2 from the O2 cylinder on the anesthesia machine and order more O2 tanks
(i) If extra O2 cylinders are not readily available and an O2-driven
mechanical ventilator (which consumes a lot of O2) was previously being
used, switch to manual ventilation to conserve the O2 used as ventilator
drive gas and extend the time to exhaustion of the O2 cylinder.
Recommended Algorithm if an O2 Analyzer is Not
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