Following vaginal delivery, a patient developed profuse bleeding due to uterine atony. The amount of blood loss in postpaum haemorrhage is more than:

Postpaum hemorrhage has been defined as the loss of 500 mL of blood or more after completion of the third stage of labor. Blood loss during the first 24 hours after delivery is early postpaum hemorrhage; blood loss between 24 hours and 6 weeks after delivery is late postpaum hemorrhage. Causes of postpaum hemorrhage include uterine atony, obstetric lacerations, retained placental tissue, and coagulation defects. Ref: Poggi S.B. (2013). Chapter 21. Postpaum Hemorrhage & the Abnormal Puerperium. In A.H. DeCherney, L. Nathan, N. Laufer, A.S. Roman (Eds),CURRENT Diagnosis & Treatment: Obstetrics & Gynecology, 11e.