Physiology - Pregnancy , labour and lactation Flashcards
how much does cardiac output rise by 20 weeks conception
a.40%
b.60%
c.70%
d.80%
a.40%
how much does blood volume rise during pregnancy
a.40%
b.60%
c.70%
d.80%
e.20%
e.20%
what happens to renal reabsorption of nacl and h2o in pregnancy due to the mineralocrticoid like effects of sex steroids
a.increase
b.decrease
a.increase
what happens to GFR in pregenancy
a.increase
b.decrease
a.increase
directly and indirectly as CO increases
pregnant women are prone to anaemia due to additional requirement of ..
a.iron
b.iodine
c.calcium
a.iron
demineralisation of maternal bones occurs in defficinecy of what in the fetus
a.iron
b.iodine
c.calcium
d.potassium
c.calcium
what are the 3 stages of parturition (birth)
dilation of the cervix
expulsion of the foetus
delivery of the placenta
which hormone causes the uterus to become more excitable and more connected by gap junctions
a. relaxin
b.hcg
c. progesterone
d.oestrogen
d.oestrogen
what happens to prostaglandin synthesis and number of oxytocin receptors during pregnancy
a.increases
b.decreases
a.increases
Production of what substance increases in the fetus in the final trimester
a.CRH
b.oestorgen
c.relaxin
a.CRH
increases foetal ACTH and cortisol
which substance is vital to maturity of the foetal respiratory system
a.CRH
b.ACTH
c.cortisol
c.cortisol
how long does stage 1 of labour (dilation) take
a. 8-24 hrs
b.2-5 hrs
c.5-15 hrs
a. 8-24 hrs
what is the correct order of the stages of labour
dilation
birth
placenta delivery
the babies head and myometrial contractions dilating the cervix occurs in which stage of labour
dilation
birth
placenta delivery
dilation
stretch on the cervix as it is dilated by the babys head causes a reflex release of which hormone from the posterior pituitary of the mother that acts on the myometrium to further increase contraction (+ve feedback)
a.cortisol
b.CRH
c.oxytocin
d.oestrogen
c.oxytocin