During the postpartum period, a nurse is assessing a client's recovery after a vaginal delivery. Component assessments include vital signs, uterine involution, and lochia evaluation. It is essential to monitor the client's blood loss and do so quantitatively when the total blood loss exceeds a certain threshold. In cases where the postpartum blood loss is more than __% of estimated blood volume, interventions should be promptly initiated. The average estimated blood volume in a postpartum client is approximately 70 mL/kg of body weight. For a client weighing 70 kg, the total blood volume is estimated to be around __ mL. If the calculated blood loss amounts to more than the calculation of __ mL, it will signify a critical condition that could lead to postpartum hemorrhage.