Using Guedel's classification, nitrous oxide maintains patients in which stage?
a. I
b. II
c. III
d. IV
a. Stage I (amnesia and analgesia)
• moderate sedation
• nitrous oxide produces Stage 1
• loss of pain, loss of general sensation, but still awake even though the patient does not know anything is happening; semiconscious reflexes intact
Health Professions
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