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
ANS: D
The "cannot meet PIP" alarm can be a result of a leak in the humidifier cartridge/patient circuit; an incomplete connection of the circuit to the jet tube; a defective or damaged jet tube (e.g., a kinked tube, improper positioning, occlusion, leak); the present settings being insufficient to ven-tilate larger patients; a patient fighting the Life Pulse; or an ineffective pinch valve opening ac-tion resulting in higher servo pressures being necessary to meet current settings.
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