OBGYN COMAT Review questions with correct
answers
When can fetal heart tones be detected w/doppler? CORRECT ANSWER 10-12
weeks
When is fetal movement appreciated? CORRECT ANSWER 17-18 weeks
When should you get a "quantitative" beta-hCG CORRECT ANSWER -to
diagnose & follow ectopic pregnancy
-monitor trophoblastic dz
-screen for fetal aneuploidy
What supplement is given in pregnancy to decrease neural tube defects for all
reproductive-age women? CORRECT ANSWER Folic acid supplements
What additional supplements are given for complete vegeterians CORRECT
ANSWER vitamin D & vitamin B12
What kind of immunoglobulins can cross the placenta? CORRECT ANSWER IgG
Prenatal screening at the initial visit CORRECT ANSWER Heme= CBC, Rh
factor, Type & Screen
ID= UA & culture, rubella Ab titer, HBsAg, RPR/VDRL, cervical G/C, PPD, IV,
Pap smear (to check for dysplasia).
,If indicated: HbA1C, Sickle cell screening. Can also discuss genetic screening
(Tay-Sachs dz, Cystic Fibrosis).
When are prenatal visits conducted? CORRECT ANSWER Weeks 0-28= every 4
weeks (7*4=28)
Weeks 29-35= every 2 weeks
Weeks 36-birth= every week
When is a quad screen conducted? CORRECT ANSWER 15-22 weeks
When's an ultrasound for full anatomic screen done? CORRECT ANSWER 18-20
weeks
When is the 1 hr glucose challenge test for gestational DM done? CORRECT
ANSWER 24-28 weeks
When is RhoGAM given to Rh- women? CORRECT ANSWER 28-30 weeks
When's GBS culture done?
(and cervical culture for N gonorrhoeae & Chlamydia in selected populations).
CORRECT ANSWER 35-40 weeks or 32-37 weeks
when can a nuchal transparency test be ordered? CORRECT ANSWER 9-14
weeks
4 elements of the Quad Screen CORRECT ANSWER maternal serum AFP
B-hCG
, Estradiol
Inhibin A
What's associated with ELEVATED maternal serum AFP (MSAFP)?
(<2.5 MoMs) CORRECT ANSWER Open neural tube defects (spina bifida,
anencephaly)
Abdominal wall defects (gastroschisis, omphalocele)
Multiple gestation
Incorrect gestational dating
Fetal death
Placental abnormailities (like rupture)
What's associated with REDUCED maternal serufm AFP (MSAFP)
(<0.5 MoM) CORRECT ANSWER Trisomy 21 & 18
Fetal demise
Inaccurate gestational dating
Quad screen in trisomy 18 CORRECT ANSWER all are decreased
(still "UNDERage" at age 18)
Quad screen in Trisomy 21 CORRECT ANSWER Decreased AFP
Increased B-hCG
Decreased Estradiol
Increased Inhibin A
answers
When can fetal heart tones be detected w/doppler? CORRECT ANSWER 10-12
weeks
When is fetal movement appreciated? CORRECT ANSWER 17-18 weeks
When should you get a "quantitative" beta-hCG CORRECT ANSWER -to
diagnose & follow ectopic pregnancy
-monitor trophoblastic dz
-screen for fetal aneuploidy
What supplement is given in pregnancy to decrease neural tube defects for all
reproductive-age women? CORRECT ANSWER Folic acid supplements
What additional supplements are given for complete vegeterians CORRECT
ANSWER vitamin D & vitamin B12
What kind of immunoglobulins can cross the placenta? CORRECT ANSWER IgG
Prenatal screening at the initial visit CORRECT ANSWER Heme= CBC, Rh
factor, Type & Screen
ID= UA & culture, rubella Ab titer, HBsAg, RPR/VDRL, cervical G/C, PPD, IV,
Pap smear (to check for dysplasia).
,If indicated: HbA1C, Sickle cell screening. Can also discuss genetic screening
(Tay-Sachs dz, Cystic Fibrosis).
When are prenatal visits conducted? CORRECT ANSWER Weeks 0-28= every 4
weeks (7*4=28)
Weeks 29-35= every 2 weeks
Weeks 36-birth= every week
When is a quad screen conducted? CORRECT ANSWER 15-22 weeks
When's an ultrasound for full anatomic screen done? CORRECT ANSWER 18-20
weeks
When is the 1 hr glucose challenge test for gestational DM done? CORRECT
ANSWER 24-28 weeks
When is RhoGAM given to Rh- women? CORRECT ANSWER 28-30 weeks
When's GBS culture done?
(and cervical culture for N gonorrhoeae & Chlamydia in selected populations).
CORRECT ANSWER 35-40 weeks or 32-37 weeks
when can a nuchal transparency test be ordered? CORRECT ANSWER 9-14
weeks
4 elements of the Quad Screen CORRECT ANSWER maternal serum AFP
B-hCG
, Estradiol
Inhibin A
What's associated with ELEVATED maternal serum AFP (MSAFP)?
(<2.5 MoMs) CORRECT ANSWER Open neural tube defects (spina bifida,
anencephaly)
Abdominal wall defects (gastroschisis, omphalocele)
Multiple gestation
Incorrect gestational dating
Fetal death
Placental abnormailities (like rupture)
What's associated with REDUCED maternal serufm AFP (MSAFP)
(<0.5 MoM) CORRECT ANSWER Trisomy 21 & 18
Fetal demise
Inaccurate gestational dating
Quad screen in trisomy 18 CORRECT ANSWER all are decreased
(still "UNDERage" at age 18)
Quad screen in Trisomy 21 CORRECT ANSWER Decreased AFP
Increased B-hCG
Decreased Estradiol
Increased Inhibin A
