OB-GYN Flashcards
Following ovulation, the corpus luteum secretes ___ to stimulate glandular cells, building tortuous & dilated/filled lumens.
progesterone
Oxygenated blood from the placenta reaches the IVC through the __.
ductus venosus, which bypasses the liver.
The most important screening for Down’s syndrome measures levels of ___, which will be (inc/decr) in an affected child.
What quad screen results would indicate trisomy 21?
alpha-fetoprotein will be decreased.
Estriol (uE3) will also be decreased.
Inhibin A and hCG will be increased.
What is the genetic inheritance of cystic fibrosis?
AR
Bacterial vaginosis is associated with the presence of ___ on microscopy and is tx with __.
clue cells
Metronidazole
Trichomonas vaginalis is tx with __.
Metronidazole
The left ovarian vein drains into the __.
left renal vein.
The placental is delivered in the ___ stage of labor.
third
Chlamydia alone is tx with (1 of 2) __.
doxycycline or azithromycin
Chlamydia & gonorrhea are treated with which antibiotics?
ceftriaxone for gonorrhea
doxy or azithro for chlamydia
Condyloma accuminata, aka ___, is associated with which infection/organism?
aka genital warts
HPV
Condyloma lata is associated with which infection/organism?
syphilis (secondary)
70% of cervical cancers are caused by (organism and serotype)
HPV 16 and 18
How is endometriosis diagnosed?
Laparoscopy with Biopsy
Most common cause of postmenopausal bleeding?
Endometrial Carcinoma
What crosses under the uterine artery and ovarian vessels?
ureter
The left ovary drains into the ___.
left renal vein
What is the medical treatment for an ectopic pregnancy?
Methotrexate
The biophysical profile uses abdominal US to assess five parameters in the fetus:
fetal breathing fetal tone fetal movement amniotic fluid volume reactive NST
How is a fetal biophysical profile scored?
Each parameter is either 2 (normal) or 0 (abnormal).
8-10 = reassuring for fetal well-being
6 = equivocal; consider delivery if at term
<4 = worrisome; consider emergent delivery.
Dichorionic-diamniotic twins form when splitting of the zygote occurs ___ after fertilization.
by day 3
Monochorionic-diamniotic twins form when splitting of the zygote occurs ___ after fertilization.
These twins share __.
between days 4-8
one placenta
Monochorionic-monoamniotic twins form when splitting of the zygote occurs ___ of fertilization.
between days 9-12
Patients with premature rupture of membranes are at increased risk for __ and present with (3) __.
chorioamnionitis
fever, abd pain, and tachycardia