The nurse is caring for a patient on a mechanical ventilator that it is set on assist-control mode. Which statement(s) accurately describe this function? (Select all that apply.)
a. The ventilator delivers a set tidal volume.
b. The ventilator delivers a set number of breaths if the patient's rate falls.
c. The ventilator automatically cuts off if the patient is breathing independently.
d. The ventilator delivers more oxygen at the end of an inspiration.
e. The ventilator helps correct respiratory acidosis.
A, B
The assist-control mode delivers a set tidal volume on every respiration and will deliver a set number of breaths per minute should the patient's rate drop. It does not cut off automatically or deliver more oxygen at the end of the inspiration, nor does it correct respiratory acidosis.
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