When do we have to start antibiotics to prevent post-operative infection?
Prophylactic antibiotics are administered before the skin incision is made. Repeat dosing occurs at an appropriate interval, usually 3 hours for abdominal cases or twice the half-life of the antibiotic.
Perioperative antibiotic prophylaxis generally is not continued beyond the day of surgery.
2 days before surgery
After surgery
1 week before surgery
1 hour before surgery & continue after surgery