A physician has selected a pressure support protocol to wean a patient off ventilatory support. Which of the following pressure levels would you recommend to begin the weaning process?

a. Pressure sufficient to obtain a VT of 3 to 5 ml/kg of predicted body weight (PBW)
b. Pressure sufficient to overcome the im-posed workload
c. Pressure sufficient to obtain a VT of 4 to 8 ml/kg PBW
d. Pressure equal to 30% of the vol-ume-cycled peak inspiratory pressure


ANS: C
For initial ventilator setup in the pressure support mode, the beginning pressure level can be ad-justed to deliver an appropriate tidal volume, usually approximately 4 to 8 ml/kg of PBW.

Health Professions

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