The respiratory therapist enters the room of an intubated and mechanically ventilated patient to find the high pressure, low exhaled volume, and low VE alarms active. This situation could be caused by which of the following?
a. Improper flow rate and flow pattern
b. Migration of the ET into the upper airway
c. The patient is out of synchrony with the ventilator.
d. The ventilator has an internal malfunction.
ANS: C
A high pressure alarm may also be triggered when a patient actively breathes out of synchrony with the ventilator. The PIP rises if the patient actively exhales while the ventilator is in the in-spiratory phase, and this can activate the high pressure alarm.
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