190- normal pregnancy Flashcards

1
Q

chadwick sign

A

increased vaginal vascularity causes darkening during pregnancy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Normal CV changes: heart, blood, BP

A

enlarged silhouette, increased circulating blood volume accompanied by lesser increase in RBC so you get decreased hct. Slight leukocytosis (not due to infection). Increased HR, CO. BP decreases in 2nd trimester, normal in other two

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

respiratory normal changes

A

Increased minute ventilation due to increased TV to lower pCO2 so fetal CO2 can diffuse. Respiratory alkalosis with increased bicarb excretion to compensate. No increase in RR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what causes the smooth muscle relaxation necessary to accomodate weight gain and uterus size increase

A

progesterone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

normal hepatic lab changes

A

increase in most clotting factors (hypercoag state).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

normal renal changes

A

increased GFR (decreased serum Cr)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

thyroid changes in pregnancy

A

increased t4 and t3 and TBG (no change in free T4). dependent on maternal until 10 wks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

How much should caloric intake increase

A

300 kcal/day max

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

fetal circulation: pathway and what causes change

A

ox blood thru umbilical vein to ductus venosus to IVC to RV thru FO to pulm trunk thru ductus arteriosus to aorta to body. When alveoli expand the pAO2 increases, decreasing PVR which causes decreased RA pressure. Backflow thru duct art. changes the sensitivity to prostaglandins and vasoconstriction occurs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

how is fetal Hg different

A

two alpha and two gamma chains (increased 02 affinity leads to left shift in curve)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

why are fetal fats high and why does the adrenal weigh so much

A

need to make lots of steroids. Fetal zone will involute

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Tetrology of fallot and tx

A

VSD, overriding Ao, pulm stenosis, PDA. Give PGE-1 to maintain PDA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

three mechanics of labor

A

power (only one we can change), passenger, passage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Stages of labor and their duration

A

Stage 1: Latent (not much change, 14-20 hrs), active (rapid cervical change)
Stage 2: B/w full dilation and delivery (2-4 hours)
Stage 3: B/w delivery and placental delivery (10-30 min)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly