A nursing student in a pharmacology class asks the instructor why nitrous oxide is used for dental surgery. What is the instructor's most accurate response?
A) Nitrous oxide stays in the body for a long time.
B) Nitrous oxide does not cause pressure in body compartments.
C) Nitrous oxide does not cause muscle relaxation.
D) Nitrous oxide does not need to be administered with oxygen.
C
Feedback:
Nitrous oxide is a potent analgesic; it is used frequently for dental surgery because it does not cause muscle relaxation. It moves quickly in and out of the body so duration of action is short and recovery after dental work is quick. Nitrous oxide does need to be given in combination with oxygen to avoid hypoxia in the patient.
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