You're giving general anesthesia to an old man with intestinal obstruction. Blood pressure is very low maintained with noradrenaline infusion. Epidural is placed. He needs to have a resection and anastomosis surgery. What would you do? 1. Ringer lactate 2 .

Dobutamine 3 . Noradrenaline infusion 4 . Epidural infusion Answer :  Ringer lactate to correct hypovolemia. Noradrenaline may be decreased. Epidural infusion would be more useful perioperatively.