Normal Puerperium 6)Breasts Lactation can occur by 16 weeks' gestation v Lactogenesis is initially triggered by the delivery of the placenta(ElLand prolactin). v the prolactin levels decrease and return to normal within 2-3 weeks(not breastfeeding The colostrum初乳( the first2-4days) The milk continues to change throughout the period of breastfeeding to meet the changing demands of the baby
Normal Puerperium 6) Breasts ✓ Lactation can occur by 16 weeks' gestation. ✓ Lactogenesis is initially triggered by the delivery of the placenta (E↓P↓and prolactin). ✓ the prolactin levels decrease and return to normal within 2-3 weeks (not breastfeeding) ✓ The colostrum初乳(the first 2-4 days) ✓ The milk continues to change throughout the period of breastfeeding to meet the changing demands of the baby
Normal Puerperium 2. Systemic change 1)Cardiovascular system Blood volume returns to nonpregnant levels by the tenth days of puerperium Cardiac output t(immediately after delivery) slowly declines- reach late pregnancy levels 2 days postpartum- normal 2-6 weeks. 2) Hematologic changes v Hemoglobin concentration t on the first postpartum days v Several clotting factors(fibrinogen) fon the first days
Normal Puerperium 2. Systemic change 1) Cardiovascular system ✓ Blood volume returns to nonpregnant levels by the tenth days of puerperium ✓ Cardiac output ↑(immediately after delivery) → slowly declines→ reach late pregnancy levels 2 days postpartum→ normal 2-6 weeks. 2) Hematologic changes ✓ Hemoglobin concentration↑on the first postpartum days ✓ Several clotting factors (fibrinogen) ↑on the first days