Maternal Fetal Physiology - Hill Flashcards Preview

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Flashcards in Maternal Fetal Physiology - Hill Deck (17):
1

What are the consequences of a woman being hypervolemic and anemic during pregnancy?

1) less viscous blood
2) reduce resistance flow
3) these help with placental perfusion and lowers cardia work

2

Are all pregnant women screened for diabetes?

YES

3

What is gestational DM?

increased insulin resistance from human placental lactogen (hPL), progesterone, prolactin and cortisol

4

When is insulin resistance highest in pregnancy?

3rd trimester

5

Does glucose or insulin cross the placenta?

1) Glucose crosses placenta
2) insulin DOES NOT cross placenta

6

Does TSH cross the placenta?

NO

7

What thyroid hormones increase during pregnancy?

1) TBG
2) total T4
3) total T3

8

What thyroid levels stay the same during pregnancy overall?

1) Free T3 and T4 increase in the first trimester and then they normalize
2) TSH decreases first trimester then normalizes

9

What is the action of progesterone?

smooth muscle relaxer

10

What changes are seen with kidneys during pregnancy?

1) increase in size, blood flow and GFR
2) decrease in BUN/Cr, UA, osmolality
3) urinary stasis (300ml always)

11

What cardiac factors change during pregnancy?

1) increase in CO, HR, preload
2) decrease in afterload (from lower SVR)

12

What respiratory changes are seen in pregnancy women?

1) increases:
a) Minute volume
b) tidal volume
c) inspiratory capacity (mildly)
d) PaO2
e) pH
2) Decreases
a) functional residual capacity
b) PaCO2
c) total lung capacity
d) residual volume
e) Expiratory reserve volume

13

What CV changes are seen in pregnancy?

1) increase
a) CO
b) HR
c) preload
2) Decrease
a) Afterload
b) SVR

14

What hemeatologic changes are seen in pregnancy?

1) increase
a) PV
b) RBC mass
c) TBV
2) Decreased
a) H/H
b) blood viscosity

15

What are "normal" changes during pregnancy?

1) respiratory alkalosis
2) EKG changes
3) cardiomegaly
4) SVTs
5) nasal stuffiness and epistaxis
6) hydronephrosis (R > L)

16

What does NOT change during pregnancy?

Respiratory rate does NOT change

17

How should a pregnant lady be positioned while down or during trauma?

1) lateral tilt
2) on left side
3) prevent compression of aorta and vena cava - especially VC (flimsy)