Hypothermia Decreases MAC — FRCA Primary MCQ
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Correct answer: C — Hypothermia
Factors decreasing MAC: hypothermia / increasing age / pregnancy / acute alcohol intoxication / concurrent opioids-sedatives / hypotension / hypoxia. Factors increasing MAC: hyperthermia / young age (peak at 6 months) / chronic alcohol use / hyperthyroidism / CNS stimulants.
Reference: Peck Hill Williams 2014 Pharmacology for Anaesthesia and Intensive Care