The RT assesses the flow-time scalar from an apneic patient mechanically ventilated in the VC-CMV mode. The most appropriate action for this patient is to do which of the following?
a. Decrease the set flow rate.
b. Reduce the set ventilator rate.
c. Increase the inspiratory time.
d. Decrease the set tidal volume.
ANS: B
Because the patient is apneic, all the breaths are time triggered. The flow-time scalar shows that the ventilator rate is 40 breaths/min. The scalar also shows that air trapping is present. To alleviate this problem, the ventilator rate must be reduced to an acceptable level, such as 12-14 breaths/min.
Health Professions
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