Pregnancy Flashcards
What are the 3 key events in the ovarian cycle?
Follicular growth
Ovulation
Luteal function
Which days of the cycle does ovulation occur?
Days 12-16
What does day 1 of the cycle indicate?
Menstruation
What hormone does the ovum produce?
oestradiol
What is the corpus luteum?
Mass of cells that forms in the ovary, made from cells of the ovarian follicle wall during ovulation
What is the corpus luteum responsible for?
Producing progesterone during early pregnancy
Which hormones are produced by the placenta?
Placental progesterone
Placental oestrogen
Human placental lactose (hPL)
Where is prolactin produced?
Anterior pituitary gland
Which hormones reach peak levels during ovulation?
LH
FSH
At what point in the cycle does oestrogen peak?
Before ovulation
At what point in the cycle does progesterone peak?
After ovulation
What happens if there’s no implantation?
Uterine wall sheds
progesterone levels decrease
What 2 hormones can cause insulin resistance in the mother?
placental progesterones
hPL
Gestational diabetes goes away after birth
True or false
true
6 weeks postpartum
At what week does foetal organogenesis occur?
week 5
What are the complications in the neonate if the mother has GDM?
respiratory distress
hypo/hyper - glycaemia
Caudal regression syndrome
CNS defects
What other complications can arise in pregnancy if the mother has GDM?
Macrosomia
Intrauterine death
Congenital malformation
Prematurity
How does macrosomia occur?
If the mother is hyperglycaemic this can lead to the foetus becoming hyperglycaemic too. The foetus will then develop hyperinsulinaemia which can cause macrosomia.
What are the additional management steps in T1DM/T2DM if pregnant?
5mg folic acid
150mg aspirin at 12 weeks
good sugar control
avoid statins
What happens to the thyroid gland during pregnancy?
It swells
Increased T4 production
What should be done if some has hypothyroidism and is pregnant?
Increase thyroxine by 25mg
Check TFT’s monthly
Which hormone is associated with vomiting in pregnancy?
hCG
How does hCG affect thyroid hormones?
hCG increases thyroxine which lowers TSH
Complications of hyperthyroidism in pregnancy?
Hyperemesis
Miscarriage
Still-birth
transient neonatal thyrotoxicosis