Least cardiotoxic agent –: (A) Isoflurane, (B) Enflurane, (C) Sevoflurane, (D) Halothane
Answer is A. Cardiac output is best maintained by Isoflurane by reflex tachycardia as it does not depress baroreceptor reflex → Most cardiovascular stable inhalational agent → Inhalational agent of choice for cardiac surgery.