Which option best describes appropriate prophylactic antibiotic use during cesarean delivery?

Which option best describes appropriate prophylactic antibiotic use during cesarean delivery?

• A. No antibiotics
• B. Prophylactic antibiotics after incision
• C. Prophylactic antibiotics given before incision
• D. Antibiotics started after signs of infection

Answer: (C)

Giving prophylactic antibiotics before the cesarean incision is the optimal approach because the goal is to have adequate antibiotic levels in the tissues at the moment of incision to prevent contamination from the surgical field and maternal flora. When the antibiotic is present in the tissues at the start of the operation, it reduces the risk of postoperative infections such as endometritis and wound infection. In practice, this usually means a single IV dose of a broad-spectrum antibiotic (commonly cefazolin) administered within about 60 minutes before skin incision. Dose adjustments may be made for obesity, and alternatives are used if there’s a penicillin allergy. Giving antibiotics after the incision or after signs of infection misses the critical window and is less effective for prevention, and starting antibiotics only after infection has developed treats the problem rather than preventing it.

Giving prophylactic antibiotics before the cesarean incision is the optimal approach because the goal is to have adequate antibiotic levels in the tissues at the moment of incision to prevent contamination from the surgical field and maternal flora. When the antibiotic is present in the tissues at the start of the operation, it reduces the risk of postoperative infections such as endometritis and wound infection.

In practice, this usually means a single IV dose of a broad-spectrum antibiotic (commonly cefazolin) administered within about 60 minutes before skin incision. Dose adjustments may be made for obesity, and alternatives are used if there’s a penicillin allergy. Giving antibiotics after the incision or after signs of infection misses the critical window and is less effective for prevention, and starting antibiotics only after infection has developed treats the problem rather than preventing it.