A 25 yr old male is undergoing incision and drainage of abscess under general anaesthesia with spontaneous respiration. The most efficient anaesthetic circuit is:: (A) Mapleson A, (B) Mapleson B, (C) Mapleson C, (D) Mapleson D
Answer is A. Mapleson A Breathing circuits A. Open system (Out dated) B. Semiopen (Out dated) C. Semiclosed (Mapleson circuits) D. Closed