1|Page
OBGYN COMAT Review Exam, Most Recent Exam
2026 ||Verified Exam!!|| Actual Complete Real Exam
Questions And Correct Answers with Rationales
(Verified Answers) Already Graded A+ | Newest
Exam!!!
When is a quad screen conducted? - Answers-15-22
weeks
When's an ultrasound for full anatomic screen done? -
Answers-18-20 weeks
When is the 1 hr glucose challenge test for gestational DM
done? - Answers-24-28 weeks
When is RhoGAM given to Rh- women? - Answers-28-30
weeks
When's GBS culture done?
(and cervical culture for N gonorrhoeae & Chlamydia in
selected populations). - Answers-35-40 weeks or 32-37
weeks
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when can a nuchal transparency test be ordered? -
Answers-9-14 weeks
4 elements of the Quad Screen - Answers-maternal serum
AFP
B-hCG
Estradiol
Inhibin A
What's associated with ELEVATED maternal serum AFP
(MSAFP)?
(<2.5 MoMs) - Answers-Open neural tube defects (spina
bifida, anencephaly)
Abdominal wall defects (gastroschisis, omphalocele)
Multiple gestation
Incorrect gestational dating
Fetal death
Placental abnormailities (like rupture)
When can fetal heart tones be detected w/doppler? -
Answers-10-12 weeks
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When is fetal movement appreciated? - Answers-17-18
weeks
When should you get a "quantitative" beta-hCG - Answers-
-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? -
Answers-Folic acid supplements
What additional supplements are given for complete
vegeterians - Answers-vitamin D & vitamin B12
What kind of immunoglobulins can cross the placenta? -
Answers-IgG
Prenatal screening at the initial visit - Answers-Heme=
CBC, Rh factor, Type & Screen
, 4|Page
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? - Answers-Weeks 0-
28= every 4 weeks (7*4=28)
Weeks 29-35= every 2 weeks
Weeks 36-birth= every week
What's associated with REDUCED maternal serufm AFP
(MSAFP)
(<0.5 MoM) - Answers-Trisomy 21 & 18
Fetal demise
Inaccurate gestational dating
Quad screen in trisomy 18 - Answers-all are decreased
(still "UNDERage" at age 18)
OBGYN COMAT Review Exam, Most Recent Exam
2026 ||Verified Exam!!|| Actual Complete Real Exam
Questions And Correct Answers with Rationales
(Verified Answers) Already Graded A+ | Newest
Exam!!!
When is a quad screen conducted? - Answers-15-22
weeks
When's an ultrasound for full anatomic screen done? -
Answers-18-20 weeks
When is the 1 hr glucose challenge test for gestational DM
done? - Answers-24-28 weeks
When is RhoGAM given to Rh- women? - Answers-28-30
weeks
When's GBS culture done?
(and cervical culture for N gonorrhoeae & Chlamydia in
selected populations). - Answers-35-40 weeks or 32-37
weeks
,2|Page
when can a nuchal transparency test be ordered? -
Answers-9-14 weeks
4 elements of the Quad Screen - Answers-maternal serum
AFP
B-hCG
Estradiol
Inhibin A
What's associated with ELEVATED maternal serum AFP
(MSAFP)?
(<2.5 MoMs) - Answers-Open neural tube defects (spina
bifida, anencephaly)
Abdominal wall defects (gastroschisis, omphalocele)
Multiple gestation
Incorrect gestational dating
Fetal death
Placental abnormailities (like rupture)
When can fetal heart tones be detected w/doppler? -
Answers-10-12 weeks
,3|Page
When is fetal movement appreciated? - Answers-17-18
weeks
When should you get a "quantitative" beta-hCG - Answers-
-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? -
Answers-Folic acid supplements
What additional supplements are given for complete
vegeterians - Answers-vitamin D & vitamin B12
What kind of immunoglobulins can cross the placenta? -
Answers-IgG
Prenatal screening at the initial visit - Answers-Heme=
CBC, Rh factor, Type & Screen
, 4|Page
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? - Answers-Weeks 0-
28= every 4 weeks (7*4=28)
Weeks 29-35= every 2 weeks
Weeks 36-birth= every week
What's associated with REDUCED maternal serufm AFP
(MSAFP)
(<0.5 MoM) - Answers-Trisomy 21 & 18
Fetal demise
Inaccurate gestational dating
Quad screen in trisomy 18 - Answers-all are decreased
(still "UNDERage" at age 18)
