A therapist has been recruited to be part of a transport team to move a mechanically ventilated ICU patient for a CT scan. The therapist will provide ventilation to the patient with a self-inflating bag during the transport. What should be the therapist's concern during this time?
A. not to overventilate the patient
B. to maintain a constant Fio2
C. to deliver a Vt higher than on the ventilator
D. to provide a constant inspiratory flow
ANS: A
A. Correct response: A number of studies have revealed that manual ventilation with a self-inflating bag during patient transport can lead to unintentional respiratory alkalosis. In these studies episodic hypotension and cardiac dysrhythmias were associated with a rapid decrease in Paco2 and the corresponding respiratory alkalosis. Overventilation of the patient would induce a respiratory alkalosis. Therefore the therapist must be concerned with not hyperventilating the patient.
B. Incorrect response: See explanation A.
C. Incorrect response: See explanation A.
D. Incorrect response: See explanation A
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