The nurse is preparing to hang a new bag for a patient who is receiving total parenteral nutrition (TPN). During this procedure, the nurse will instruct the patient to take a deep breath and then perform which action?
a. Exhale slowly and bear down.
b. Exhale slowly to the count of 10.
c. Hold the breath and bear down.
d. Take several rapid, shallow breaths.
ANS: C
Valsalva's maneuver is performed by taking a breath, holding it, and bearing down. Patients are instructed to perform this maneuver in order to prevent the formation of air emboli.
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