When the therapist is initially setting the high-pressure alarm on the ventilator and the patient's plateau pressure is less than 30 cm H2O, what should the high-pressure alarm be set at?
a. 5 to 10 cm H2O above the peak pressure
b. 10 to 20 cm H2O above the peak pressure
c. 10 to 12 cm H2O above the plateau pres-sure
d. 10 to 15 cm H2O above the mean airway pressure
ANS: B
If the plateau pressure is less than 30 cm H2O, the high pressure limit can be adjusted to 10 to 20 cm H2O above the peak inspiratory pressure.
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