Lowest concentration of anaesthetic agent in alveoli needed to produce immobility in response to painful stimulus in 50% of individual is termed as –: (A) Minimum alveolar concentration, (B) Minimal analgesic concentration, (C) Minimal anaesthetic concentration, (D) Maximum alveolar concentration
Answer is A. MAC is the lowest concentration of the anaesthetic in pulmonary alveoli needed to produce immobility in response to a painful stimulus (surgical incision) in 50% individuals.