Following a vaginal delivery, a woman develops a fever, lower abdominal pain and uterine tenderness. She is alert, and her blood pressure and urine output are good. Large gram positive rods suggestive of clostridia are seen in a smear of cervix. management should include all except :

• A. Immediate radiographic examination for gas in uterus
• B. High dose antibiotic therapy
• C. Hysterectomy
• D. close observation for renal failure or hemolysis
• E. none