Anaes SAQs · Volatile & inhalational agents
Minimum alveolar concentration and its determinants
The MAC SAQ — the definition (alveolar conc preventing movement in 50%), the per-agent values, additivity, and the modifiers (age ↓, hyperthermia/hyperthyroid/chronic alcohol ↑, pregnancy/opioids/alpha-2 agonists ↓). Anchored to the MAC reviews.
On this page
Study tools
Target exams
ANZCAFRCAABAEDAIC
Prompt
Define the minimum alveolar concentration (MAC), state its approximate values for the common agents, and list the factors that increase and decrease it.
Question
Define the minimum alveolar concentration (MAC), state its approximate values for the common agents, and list the factors that increase and decrease it.
References3ShowHide
- [3]Sonner JM, Antognini JF, Dutton RC, Flood P, et al. Inhaled anesthetics and immobility: mechanisms, mysteries, and minimum alveolar anesthetic concentration. Anesthesia & Analgesia, 2003.PMID 12933393
- [4]Eger EI 2nd. Age, minimum alveolar anesthetic concentration, and minimum alveolar anesthetic concentration-awake. Anesthesia & Analgesia, 2001.PMID 11574362
- [5]Bersten AD, Soni N (eds) Oh's Intensive Care Manual. 8th edition, Elsevier, 2018.