Positive end-expiratory pressure (PEEP) is a mode of ventilatory assistance that produces the following condition:
a. Each time the patient initiates a breath, the ventilator delivers a full preset tidal volume.
b. For each spontaneous breath taken by the patient, the tidal volume is determined by the patient's ability to generate negative pressure.
c. The patient must have a respiratory drive, or no breaths will be delivered.
d. There is pressure remaining in the lungs at the end of expiration that is measured in cm H2O.
D
PEEP is the addition of positive pressure into the airways during expiration. PEEP is measured in centimeters of water.
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