OB/GYN COMAT Questions with 100% Correct
Answers
Heart Changes in pregnancy Correct Answer: SVR and
MAP decreased
HR and Cardiac Output increased
Respiratory changes in pregnancy Correct Answer: FRC,
ERV and RV decrease
TLC is unchanged
TV and MV increase
Renal changes in pregnancy Correct Answer: serum
creatinine is decreased
creatinine clearance and GFR are increased
Endocrine changes in pregnancy Correct Answer:
progesterone and estrogen increase
aldosterone, renin, and relaxin increase
When will the gestational sac be seen on TVUS? Correct
Answer: when beta-hcg is greater than 2000
,Hyperemesis gravid arum acid base disorder Correct
Answer: hypokalemic, hypochloremic metabolic
alkalosis
Chorionic Villi Sampling Correct Answer: A prenatal test
that uses a sample of the tissue from the membrane that
encases the fetus to check for specific birth defects
Amniocentesis Correct Answer: A technique of prenatal
diagnosis in which amniotic fluid, obtained by aspiration
from a needle inserted into the uterus, is analyzed to
detect certain genetic and congenital defects in the
fetus.
Non-Stress Test Correct Answer: Looks at FHE with activity
- Favorable results- 2 or more FHR accelerations of 15
beats lasting 15 seconds in a 20 minute period
Biophysical Profile Correct Answer: 8+ = reassuring
6 is equivocal- if term, deliver baby
<4 = concerns for asphyxia
,Contraction Stress Test Correct Answer: + = more than
50% of contractions are associated with late
decelerations
- = less than 50% are of contractions are associated with
late decelerations
When do you use an umbilical artery doppler? Correct
Answer: when fetal growth restriction is suspected --> as
resistance in the placenta increases, the flow can be
absent during systole or reversed
Umbilical cord is made up of what? Correct Answer: 2
arteries and 1 vein
Umbilical arteries carry what? Correct Answer:
deoxgenated blood from the heart of the fetus to the
mom
Umbilical veins carry what? Correct Answer: oxygenated
blood from the mom to the heart of the fetus
Threatened Abortion Correct Answer: vaginal bleeding
without dilation of the cervix or passage of tissue
, expectant management
Fetal Hemolytic Disease Correct Answer: Rh antigen in
serum. The mother is Rh- and the fetus is Rh+. The fetal
immune system attacks mothers blood cells that cross
placenta. The first pregnancy is fine, the next rejects the
fetus. Rhogam shots to treat.
Subsequent pregnancies leads to hydrops fetalis,
hypoxia, and death of the infant
Screening for gestational diabetes Correct Answer: -24-
28 wks with a 1 hour glucose tolerance test
- use a fasting glucose and a one-hour glucose following
a 50g glucose load
- if fasting >126 OR one-hour glucose is greater than 130
then the patient is considered to have a positive result
- if positive the pt should undergo a three-hour GTT with
100g glucose load
3 hour GTT (glucose tolerance test) Correct Answer:
positive if :
Answers
Heart Changes in pregnancy Correct Answer: SVR and
MAP decreased
HR and Cardiac Output increased
Respiratory changes in pregnancy Correct Answer: FRC,
ERV and RV decrease
TLC is unchanged
TV and MV increase
Renal changes in pregnancy Correct Answer: serum
creatinine is decreased
creatinine clearance and GFR are increased
Endocrine changes in pregnancy Correct Answer:
progesterone and estrogen increase
aldosterone, renin, and relaxin increase
When will the gestational sac be seen on TVUS? Correct
Answer: when beta-hcg is greater than 2000
,Hyperemesis gravid arum acid base disorder Correct
Answer: hypokalemic, hypochloremic metabolic
alkalosis
Chorionic Villi Sampling Correct Answer: A prenatal test
that uses a sample of the tissue from the membrane that
encases the fetus to check for specific birth defects
Amniocentesis Correct Answer: A technique of prenatal
diagnosis in which amniotic fluid, obtained by aspiration
from a needle inserted into the uterus, is analyzed to
detect certain genetic and congenital defects in the
fetus.
Non-Stress Test Correct Answer: Looks at FHE with activity
- Favorable results- 2 or more FHR accelerations of 15
beats lasting 15 seconds in a 20 minute period
Biophysical Profile Correct Answer: 8+ = reassuring
6 is equivocal- if term, deliver baby
<4 = concerns for asphyxia
,Contraction Stress Test Correct Answer: + = more than
50% of contractions are associated with late
decelerations
- = less than 50% are of contractions are associated with
late decelerations
When do you use an umbilical artery doppler? Correct
Answer: when fetal growth restriction is suspected --> as
resistance in the placenta increases, the flow can be
absent during systole or reversed
Umbilical cord is made up of what? Correct Answer: 2
arteries and 1 vein
Umbilical arteries carry what? Correct Answer:
deoxgenated blood from the heart of the fetus to the
mom
Umbilical veins carry what? Correct Answer: oxygenated
blood from the mom to the heart of the fetus
Threatened Abortion Correct Answer: vaginal bleeding
without dilation of the cervix or passage of tissue
, expectant management
Fetal Hemolytic Disease Correct Answer: Rh antigen in
serum. The mother is Rh- and the fetus is Rh+. The fetal
immune system attacks mothers blood cells that cross
placenta. The first pregnancy is fine, the next rejects the
fetus. Rhogam shots to treat.
Subsequent pregnancies leads to hydrops fetalis,
hypoxia, and death of the infant
Screening for gestational diabetes Correct Answer: -24-
28 wks with a 1 hour glucose tolerance test
- use a fasting glucose and a one-hour glucose following
a 50g glucose load
- if fasting >126 OR one-hour glucose is greater than 130
then the patient is considered to have a positive result
- if positive the pt should undergo a three-hour GTT with
100g glucose load
3 hour GTT (glucose tolerance test) Correct Answer:
positive if :
