OBGYN-OB1 Edelman All Answers Correct
The foramen ovale permits blood to pass from the: ✔️right to the left
Exchange of oxygen, nutrients and fetal wastes occurs at what location in the placenta? ✔️chorionic
villi
The ratio of BPD to OFD determines the ✔️CI
The optimal period to examine fetal cardiac anatomy is ✔️18-22 weeks
The most dangerous location for an ectopic pregnancy is ✔️interstitial
Clinical signs of placenta previa include all of the following except ✔️hypovolemic shock
When obtaining a fetal abdominal circumference measurement, which of the following should not be
visualized? ✔️umbilical insertion
The umbilical cord is covered by ✔️amnion
The nuchal fold should not exceed ______ mm in a normal pregnancy, when measured prior to 21
weeks. ✔️6 mm
If an embryo fails to develop or stops developing before it is detectable sonographically, this is
specifically termed ✔️an anembryonic pregnancy
During a routine first trimester sonogram, the sonographer notes a 4 cm anechoic cyst in one of the
maternal ovaries. This most likely is ✔️corpus luteum cyst of pregnancy
, The anechoic structure visualized sonographically in the posterior portion of the embryonic cranium
between 8-11 weeks is ✔️rhombencephalon
Chorioamniotic separation is normal until _______ menstrual weeks. ✔️16
An identifiable embryo at least 7 mm in size without cardiac activity is referred to as a(n) ____ abortion.
✔️missed
Embryonic cardiovascular activity is typically within what range between 5 - 6 weeks gestation? ✔️100-
115 bpm
The vessels normally found in the umbilical cord are ✔️2 arteries 1 vein
The trophoblasts of the blastocyst become the ✔️chorion
Which of the following sonographic findings is specific for an ectopic pregnancy? ✔️extrauterine mass
with a visible yolk sac
Sonographic findings suspicious for ectopic pregnancy include all of the following except ✔️sac
eccentric to endometrial cavity
The amnion and chorion should not be seen as separate entities sonographically by what gestational
age? ✔️16 weeks
Embryonic growth rate is approximately ✔️1mm per day
All of the following may be seen sonographically with a missed abortion except ✔️brownish vaginal
discharge without frank bleeding
Which of the following is not characteristic of an anembryonic pregnancy? ✔️dilated cervix greater
than 3 cm
The foramen ovale permits blood to pass from the: ✔️right to the left
Exchange of oxygen, nutrients and fetal wastes occurs at what location in the placenta? ✔️chorionic
villi
The ratio of BPD to OFD determines the ✔️CI
The optimal period to examine fetal cardiac anatomy is ✔️18-22 weeks
The most dangerous location for an ectopic pregnancy is ✔️interstitial
Clinical signs of placenta previa include all of the following except ✔️hypovolemic shock
When obtaining a fetal abdominal circumference measurement, which of the following should not be
visualized? ✔️umbilical insertion
The umbilical cord is covered by ✔️amnion
The nuchal fold should not exceed ______ mm in a normal pregnancy, when measured prior to 21
weeks. ✔️6 mm
If an embryo fails to develop or stops developing before it is detectable sonographically, this is
specifically termed ✔️an anembryonic pregnancy
During a routine first trimester sonogram, the sonographer notes a 4 cm anechoic cyst in one of the
maternal ovaries. This most likely is ✔️corpus luteum cyst of pregnancy
, The anechoic structure visualized sonographically in the posterior portion of the embryonic cranium
between 8-11 weeks is ✔️rhombencephalon
Chorioamniotic separation is normal until _______ menstrual weeks. ✔️16
An identifiable embryo at least 7 mm in size without cardiac activity is referred to as a(n) ____ abortion.
✔️missed
Embryonic cardiovascular activity is typically within what range between 5 - 6 weeks gestation? ✔️100-
115 bpm
The vessels normally found in the umbilical cord are ✔️2 arteries 1 vein
The trophoblasts of the blastocyst become the ✔️chorion
Which of the following sonographic findings is specific for an ectopic pregnancy? ✔️extrauterine mass
with a visible yolk sac
Sonographic findings suspicious for ectopic pregnancy include all of the following except ✔️sac
eccentric to endometrial cavity
The amnion and chorion should not be seen as separate entities sonographically by what gestational
age? ✔️16 weeks
Embryonic growth rate is approximately ✔️1mm per day
All of the following may be seen sonographically with a missed abortion except ✔️brownish vaginal
discharge without frank bleeding
Which of the following is not characteristic of an anembryonic pregnancy? ✔️dilated cervix greater
than 3 cm
