Breast feeding Flashcards
What is the puerperium?
time after childbirth lasting 6-8 weeks
What is meant by involution of the uterus
Uterus returns to pre-pregnant state
From what point can the fundus no longer be palpated
10 days (reduced to size below pubis symphysis)
How does the myometrium change during involution
Returns to normal thickness by ischaemia, autolysis and phagocytosis
How does the decidua change during involution?
Lining shed as locia, regeneration of endometrium
What happens during ischaemia of the myometrium
Contraction of empty uterus and apposition of uterine walls applying pressure to placental site
Reduction of blood supply to uterus
Resulting deoxygenation
What happens during autolysis of myometrium
Self-ingestion of myometrial cells by proteolytic enzymes resulting in reduction in size
Removal of reducant actin and myosin muscle fibre
What happens during phagocytosis of myometrium
Phagocytes engulf and remove waste products of autolysis which are eliminated by kidneys
What is lochia
Vaginal loss during the puerperium
How long is lochia red for?
3 days
How long is lochia pink for?
10 days
How long is lochia yellow for?
3-6 weeks
How does plasma volume change?
Reduction in plasma volume within 10 days
How does cardiac output, heart rate and stroke volume change?
Reduction to pre labour value after 24-72 hours
Decline to non-pregnant value 6-8 weeks
Why are women no longer short of breath after giving birth?
Reduction in compression of lungs due to reduction in uterine size leading to full inflation