A mechanically ventilated patient is going to be placed on pressure support ventilation following an acceptable spontaneous weaning trial
The patient is a 5'9" male who weighs 185 lb. During volume-controlled continuous mandatory ventilation (VC-CMV) his average peak inspiratory pressure (PIP) was about 26 cm H2O and the plateau pressure (PPlateau) was 16 cm H2O. What initial pressure support level should be set?
a. 5 cm H2O
b. 10 cm H2O
c. 15 cm H2O
d. 20 cm H2O
ANS: B
The easiest way to establish the initial setting for pressure support ventilation (PSV) is to set it equal to the transairway pressure (peak inspiratory pressure (PIP) – plateau pressure (Pplateau)).
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