A 6'2 male patient is being ventilated in the volume-controlled continuous mandatory ventilation (VC-CMV) mode with a set tidal volume (VT) of 650 mL. There is 40 mL of mechanical dead space. Calculate the final alveolar ventilation.
a. 432 mL
b. 445 mL
c. 510 mL
d. 535 mL
Q. 2 The operational verification procedure (OVP) involves checking the ventilator circuit for leaks. Ventilator settings that could be used to perform this procedure include which of the following?
a. Tidal volume (VT) = 500 mL, Flow rate = 60 L/min, High pressure limit = 50 cm H2O
b. VT = 1000 mL, Flow rate = 20 L/min, High pressure limit = maximum
c. VT = 500 mL, Flow rate = 20 L/min, High pressure limit = maximum, Inspiratory pause = 2 seconds
d. VT = 200 mL, Flow rate = Maximum, High pressure limit = 50 cm H2O, Inspira-tory pause = 1 second
Q. 3 How often should the fractional inspired oxygen (FIO2) of an adult be measured?
a. Twice daily
b. Continuously
c. Every patient-ventilator system check
d. Every other patient-ventilator system check
Q. 4 How long after beginning mechanical ventilation on a patient should an arterial blood gas sample be drawn?
a. 5 minutes
b. 10 minutes
c. 15 minutes
d. 20 minutes
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