Your patient has relatively normal lungs and is receiving mechanical ventilation following sur-gery. You observe double triggering. What is the most likely cause?

a. The termination criteria is set too low.
b. The flow rate is too slow.
c. Auto-PEEP.
d. The inspiratory time is too short.


ANS: D
In patient with relatively healthy lungs where the termination criteria is set too high or inspiratory time too short, double triggering can occur every breath. These are primarily postoperative pa-tients or overdose patients.

Health Professions

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