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OBGYN COMAT Review 100% Correct Answers Verified Latest 2024 Version

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OBGYN COMAT Review | 100% Correct Answers | Verified | Latest 2024 Version When can fetal heart tones be detected w/doppler? - 10-12 weeks When is fetal movement appreciated? - 17-18 weeks When should you get a "quantitative" beta-hCG - -to diagnose & follow ectopic pregnancy -monitor tropho...

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  • July 3, 2024
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OBGYN COMAT Review | 100% Correct
Answers | Verified | Latest 2024 Version
When can fetal heart tones be detected w/doppler? - ✔✔10-12 weeks


When is fetal movement appreciated? - ✔✔17-18 weeks



When should you get a "quantitative" beta-hCG - ✔✔
-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?
- ✔✔Folic acid supplements



What additional supplements are given for complete vegeterians - ✔✔vitamin D & vitamin B12



What kind of immunoglobulins can cross the placenta? - ✔✔IgG



Prenatal screening at the initial visit - ✔✔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? - ✔✔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? - ✔✔15-22 weeks



When's an ultrasound for full anatomic screen done? - ✔✔18-20 weeks



When is the 1 hr glucose challenge test for gestational DM done? - ✔✔24-28 weeks



When is RhoGAM given to Rh- women? - ✔✔28-30 weeks


When's GBS culture done?

(and cervical culture for N gonorrhoeae & Chlamydia in selected populations). - ✔✔35-40 weeks or 32-
37 weeks



when can a nuchal transparency test be ordered? - ✔✔9-14 weeks



4 elements of the Quad Screen - ✔✔maternal serum AFP
B-hCG
Estradiol
Inhibin A


What's associated with ELEVATED maternal serum AFP (MSAFP)?

(<2.5 MoMs) - ✔✔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) - ✔✔Trisomy 21 & 18

, Fetal demise
Inaccurate gestational dating



Quad screen in trisomy 18 - ✔✔all are decreased
(still "UNDERage" at age 18)



Quad screen in Trisomy 21 - ✔✔Decreased AFP
Increased B-hCG
Decreased Estradiol
Increased Inhibin A



earliest screening for down syndrome & trisomy 18? - ✔✔PAPP-A + nuchal transparency +free B-hCG
done at 9-14 weeks ("Full Integrated test")


Note-> nuchal transparency is increased.


(PAPP-A= pregnancy-associated plasma protein A)



At what time (weeks) is CVS vs amniocentesis done? - ✔✔CVS= 10-12 weeks
Amniocentesis= 15-20 weeks



Which is indicated in women who will be >35 yo at time of delivery? - ✔✔amniocentesis



What are the major infectious organisms that can cross the placenta? - ✔✔TORCHeS:
Toxoplasmosis
Other (parvovirus, varicella, Listeria, TB, malaria, fungi)
Rubella
CMV
Herpes simplex virus
HIV

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