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Obstetrics & Gynecology PreTest Self-Assessment & Review, by Schneider K., Patrick S.

By Schneider K., Patrick S.

Obstetrics & Gynecology: PreTestâ„¢ Self-Assessment & evaluation is the best option to determine your wisdom of obstetrics and gynecology for the USMLE Step 2 CK and shelf tests. you can find 500 USMLE-style questions and solutions that tackle the clerkship's middle expertise besides designated motives of either right and wrong solutions. All questions were reviewed by way of scholars who lately handed the forums and accomplished their clerkship to make sure they fit the fashion and hassle point of the examination.

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Extra resources for Obstetrics & Gynecology PreTest Self-Assessment & Review, Twelfth Edition (PreTest Clinical Medicine)

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A healthy 34-year-old G1P0 patient comes to see you in your office for a routine OB visit at 12 weeks gestational age. She tells you that she has stopped taking her prenatal vitamins with iron supplements because they make her sick and she has trouble remembering to take a pill every day. A review of her prenatal labs reveals that her hematocrit is 39%. Which of the following statements is the best way to counsel this patient? a. Tell the patient that she does not need to take her iron supplements because her prenatal labs indicate that she is not anemic and therefore she will not absorb the iron supplied in prenatal vitamins b.

Monozygotic twins are always of the same sex but may be monochorionic or dichorionic depending upon when the separation of the twins occurred. Of monozygotic twins, 20% to 30% have dichorionic placentation, the result of separation of the blastocyst in the first 2 days after fertilization. The majority of monozygotic twins have a diamniotic and monochorionic placenta. The least common type of placentation in monozygotic twins is the monochorionic and monoamniotic placenta; its incidence is only about 1%.

Amniotic fluid AFP levels are obtained via an amniocentesis if a targeted ultrasound does not indicate a fetal anomaly that would explain the elevated AFP levels obtained on triple test. MSAFP screening will pick up 90% of neural tube defects, but its positive predictive value is only 2% to 6%. Therefore most pregnant women with elevated serum AFP levels will not have fetuses with neural tube defects. Studies indicate that unexplained high serum AFP levels (ie, no obvious fetal malformations detected on sonogram) are associated with adverse pregnancy outcomes such as low birth weight, placental abruption, oligohydramnios, and fetal death in utero.

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