The best time period to give preoperative antibiotics :

It is best to give antibiotics within 1 hour prior to surgical site incision. There is two exception to this rule i. Vancomycin should be given 2 hours prior ii. When tourniquet is used it should be given before inflation of tourniquet. The most common organisms implicatedas causes of surgical site infections include: staphylococcus aureus staphylococcusepidermidis aerobic streptococci anaerobic cocci