Maternal-Fetal Medicine — Flashcards

Flashcard 61: If the developing embryo splits during **days 8-12** (after the amnion has formed), the twins will be _____ and monoamniotic (# of chorions and # of amniotic sacs)

Answer: monochorionic

Extra: Timing of Monozygotic Twinning: - **Days 0-4**: Dichorionic / Diamniotic (Cleavage stage) - **Days 4-8**: Monochorionic / Diamniotic (Blastocyst stage) - **Days 8-12**: Monochorionic / Monoamniotic (Embryonic disc stage) - **>13 Days**: Conjoined twins

Flashcard 62: Calcium Channel Blockers (CCBs) _____ is a dihydropyridine CCB that is used to treat hypertension during pregnancy

Answer: Nifedipine

Flashcard 63: Ectopic pregnancy may present with a _____ than expected rise in the hormone hCG based on dates

Answer: lower

Flashcard 64: Association of fetal _____ and development of maternal edema in which the mother mirrors the fetus is attributed to Ballantyne syndrome

Answer: hydrops

Flashcard 65: In an anticipated preterm delivery, the dose of betamethasone is _____mg IM 24hrly 2 doses

Answer: 12

Flashcard 66: Risk factors for placenta previa include _____ and prior C-section

Answer: multiparity

Flashcard 67: One test for fetal lung maturity is the _____:albumin ratio in the amniotic fluid

Answer: surfactant

Flashcard 68: Major complications of ectopic pregnancy are _____ and/or rupture

Answer: hematosalpinx (bleeding into the fallopian tube)

Flashcard 69: _____ syndrome is also called triple edema because the fetus, mother, and placenta all became edematous.

Answer: Ballantyne

Flashcard 70: _____ is a complication of pregnancy that occurs when fetal vessels run over, or in close proximity to, the cervical os

Answer: Vasa previa