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Anesthesia · single question

A patient is administered 25% N2O in O2. What level of sedation is achieved?

  1. Moderate sedation
  2. No sedation
  3. Deep sedation
  4. Minimal sedation
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Correct answer: D. Minimal sedation

Per ASA guidelines: N2O at concentrations LESS THAN 50% = MINIMAL sedation (anxiolysis). Patient remains fully conscious, responds normally to verbal commands, no significant impairment of reflexes. 25% falls well within minimal sedation range.

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