The recommended time for prophylactic antibiotic is: (A) 30 min prior to induction of anesthesia, (B) 15 min after the initiation of surgery, (C) At the time of induction, (D) At the time of skin incision
Answer is A. Antibiotic should be present in adequate concentration at the operative site before incision and through out the procedure Parenteral agents should be admistered during the interval beginning 60 minutes before incision