A woman delivers spontaneously at term. Blood loss is measured with a calibrated drape. According to standard definitions used in Indian postgraduate examinations, primary postpartum hemorrhage is diagnosed when blood loss exceeds:

• A 300 mL after vaginal delivery or 500 mL after cesarean delivery
• B 500 mL after vaginal delivery or 1000 mL after cesarean delivery ✓
• C 500 mL after any route of delivery
• D 1000 mL after vaginal delivery or 1500 mL after cesarean delivery

Explanation

Primary PPH is defined as blood loss of 500 mL or more within 24 hours of vaginal birth, and 1000 mL or more after cesarean delivery, occurring within 24 hours of birth. The higher cesarean threshold reflects the larger baseline blood loss of abdominal surgery. Option C ignores the route-specific threshold, and option D describes massive obstetric hemorrhage rather than the diagnostic definition.

Reference: DC Dutta's Textbook of Obstetrics, 10th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.