The Bunnell Life Pulse High-Frequency Jet Ventilator is being set up to ventilate an infant who has a regular endotracheal tube with a 3.5-mm internal diameter Life Port adapter
Conventional peak inspiratory pressure is set at 30 cm H2O. The high-frequency jet ventilation peak inspiratory pressure should be set at a pressure of _____ cm H2O.
a. 25.5 c. 28.5
b. 27.0 d. 30.0
ANS: B
When a LifePort adapter larger than 2.5-mm internal diameter is used, the clinician should set up the initial high-frequency jet ventilation peak inspiratory pressure at 90% of the conventional peak inspiratory pressure. Therefore, 90% of 30 cm H2O is 27 cm H2O.
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