During mechanical ventilation, a spontaneous breath is defined as one that:
a. initiated and terminated by the machine.
b. begun by the patient and ended by the machine.
c. initiated and terminated by the patient.
d. begun by the machine and ended by the patient.
ANS: C
A spontaneous breath is a breath for which the patient decides the start time and the tidal vol-ume. That is, the patient both triggers and cycles the breath.
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