Ob/Gyn Flashcards
Women with in utero exposure to diethylstilbestrol (DES) are at greatest risk of developing clear cell _______ of the _______.
Adenocarcinoma; vagina or cervix
What is the first test that should be performed in a pt w/hyperemesis gravidarum?
Quantitative β-hCG
When do β-hCG levels peak in pregnancy? What is the serum(?) concentration at that time?
10 weeks
100,000 mIU/mL
Until what gestational age are the products of conception called an embryo?
10 weeks
What is the difference between gestational age (GA) and the developmental age (DA)?
GA = DA + 2 wks
A preterm delivery is one that falls in between what gestational ages?
24-37 wks
What’s Nagele’s rule for determining the estimated date of confinement (delivery)?
LMP - 3 mos + 7 days
What happens to cardiac output during preg?
Increases by 30-40%
During preg, cardiac output is first increased by an increase in _______ and then maintained by an increase in _______.
Stroke volume; heart rate
What happens to BP during preg?
Decreases
How is the pregnancy drop in BP most likely mediated?
Progesterone relaxes smooth muscle
At what gestational age does hype remedies gravidarum occur?
Weeks 4-10
What happens to total lung capacity (TLC) during preg?
Decreases 5%
What happens to tidal volume (Vt) during preg?
Increases 30-40%
What happens to RR during preg?
No change
What happens to minute ventilation during preg?
Increases 30-40%
PaCO2 decreases to ___ mmHg by 20 wks.
30
What mediates the increased respiratory drive?
Progesterone
What is a common (60-70%) respi complaint in preg?
Dyspnea
In hyperemesis gravidarum, women lose greater than ___% of their prepared body weight.
5
2 common GI complaints in preg.
GE reflux and constipation
What are the 2 reasons for GE reflux in preg?
Prolonged gastric emptying and decreased LES tone
What is the reason for constipation in preg?
Decreased colonic motility –> increased water absorption
What is the effect of preg on GFR?
Increases 50%
During the latent stage of labor, the cervix _______ more than it _______.
effaces; dilates
How dilated is the cervix when the patient reaches active labor?
4 cm
How quickly should the cervix of a nulliparous woman dilate in the active phase of labor?
> /= 1.2 cm/hr
How quickly should the cervix of a woman who had had at least one vaginal delivery dilate during the active stage of labor?
> /= 1.5 cm/hr
What is it called if a woman is >4 cm dilated, but dilation is slower than normal?
Protraction of active phase
Define arrest of the active phase.
Non-progress of active labor for 2 hrs
