<prompt> Preferred time forprophylacticantibiotic administration for surgery?1 day befor surgeryI.M. 6 hrs before surgeryAt the time of induction of anaesthesiaI.V. during surgery  <response>: Ans is C i.e. At the time of induction of anaesthesia The appropriate antibiotic is chosen before surgery and administered before the skin incision is made.-Sabiston 18e 