The respiratory therapist has determined that a 4.0-mm internal diameter standard endotracheal tube is necessary for the patient. What is the equivalent hi-lo jet tube to be used with a Bunnell Life Pulse High-Frequency Jet Ventilator?
a. 3.0-mm internal diameter hi-lo jet tube
b. 3.5-mm internal diameter hi-lo jet tube
c. 4.0-mm internal diameter hi-lo jet tube
d. 4.5-mm internal diameter hi-lo jet tube
Q. 2 The cannot meet PIP alarm is active on a Bunnell Life Pulse High-Frequency Jet Ventilator. The respiratory therapist should do which of the following?
1. Check the humidifier cartridge for a leak.
2. Check the jet tube connection to the circuit.
3. Look for kinks in the jet tube connections.
4. Check the dump valve for proper function.
a. 2 c. 3 and 4
b. 1 and 2 d. 1, 2, and 3
Q. 3 The Bunnell Life Pulse High-Frequency Jet Ventilator is being set up to ventilate an infant who has already been intubated with a regular endotracheal tube.
A 2.5-mm internal diameter Life Port adapter is being used. The conventional peak inspiratory pressure is set at 26 cm H2O. The high-frequency jet ventilation peak inspiratory pressure should be set at a pressure of _____ cm H2O.
a. 23.4 c. 26
b. 24.7 d. 28
Q. 4 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
Q. 5 The Bunnell Life Pulse High Frequency Jet Ventilator creates high-frequency jet ventilation by using which of the following mechanisms?
a. Rotary piston c. Spinning ball
b. Pinch valve d. Flow interrupter
Q. 6 Which operating mode on the Drger Babylog 8000 allows the clinician to adjust the flow during the expiratory phase to match the patient's needs during mandatory and spontaneous breaths?
a. Assist/control
b. Intermittent mandatory ventilation
c. Variable inspiratory, variable expiratory
d. Continuous positive airway pressure
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