In 10 min after childbirth by a 22-year-old woman, the placenta was spontaneously delivered and 100 ml of blood came out. Woman weight - 80 kg, infant weight - 4100 g, length - 53 cm. The uterus contracted. In 10 minutes the hemorrhage renewed and the amount of blood constituted 300 ml. What amount of blood loss is permissible for this woman?