OB/GYN SONOSIM COMPLETE
ANSWERS
Which of the following is an objective of first-trimester ultrasonography? - ANSWER-
All of the above
Which of the following criteria distinguishes a live intrauterine pregnancy from an
early intrauterine pregnancy on pelvic ultrasound? - ANSWER-Cardiac activity within
the fetal pole
If an intrauterine gestational sac is greater than or equal to __________ millimeters
and does not contain a yolk sac, the intrauterine pregnancy is considered abnormal.
- ANSWER-10
If a fetal pole within a gestational sac has a crown-rump length of greater than or
equal to five millimeters and does not have cardiac activity, the intrauterine
pregnancy is abnormal. - ANSWER-True
Which of the following findings is diagnostic of ectopic pregnancy in a patient with an
empty uterus? - ANSWER-Extrauterine gestational sac containing a yolk sac or fetal
pole
Endovaginal imaging of an adnexal mass that demonstrates a "ring of fire" sign is
diagnostic of an ectopic pregnancy. - ANSWER-False
Which of the following is an ultrasound finding of a cornuate (interstitial) ectopic
pregnancy? - ANSWER--Empty uterine cavity
-Gestational sac located at the margin of the uterine wall
-Gestational sac surrounded by a thin (less than five millimeters) or incomplete
myometrial mantle
-"Interstitial line" sign
For patients with an indeterminate pregnancy, a β-hCG increase of greater than or
equal to 66 percent over 48 hours definitively excludes the diagnosis of ectopic
pregnancy. - ANSWER-False
Which of the following conditions is in the differential diagnosis of an indeterminate
pregnancy? - ANSWER-The ovaries are typically located anteromedial to the iliac
vessels
On pelvic ultrasound, how does one differentiate the ovaries from loops of bowel? -
ANSWER--Abnormal intrauterine pregnancy
-Ectopic pregnancy
-Early intrauterine pregnancy
ANSWERS
Which of the following is an objective of first-trimester ultrasonography? - ANSWER-
All of the above
Which of the following criteria distinguishes a live intrauterine pregnancy from an
early intrauterine pregnancy on pelvic ultrasound? - ANSWER-Cardiac activity within
the fetal pole
If an intrauterine gestational sac is greater than or equal to __________ millimeters
and does not contain a yolk sac, the intrauterine pregnancy is considered abnormal.
- ANSWER-10
If a fetal pole within a gestational sac has a crown-rump length of greater than or
equal to five millimeters and does not have cardiac activity, the intrauterine
pregnancy is abnormal. - ANSWER-True
Which of the following findings is diagnostic of ectopic pregnancy in a patient with an
empty uterus? - ANSWER-Extrauterine gestational sac containing a yolk sac or fetal
pole
Endovaginal imaging of an adnexal mass that demonstrates a "ring of fire" sign is
diagnostic of an ectopic pregnancy. - ANSWER-False
Which of the following is an ultrasound finding of a cornuate (interstitial) ectopic
pregnancy? - ANSWER--Empty uterine cavity
-Gestational sac located at the margin of the uterine wall
-Gestational sac surrounded by a thin (less than five millimeters) or incomplete
myometrial mantle
-"Interstitial line" sign
For patients with an indeterminate pregnancy, a β-hCG increase of greater than or
equal to 66 percent over 48 hours definitively excludes the diagnosis of ectopic
pregnancy. - ANSWER-False
Which of the following conditions is in the differential diagnosis of an indeterminate
pregnancy? - ANSWER-The ovaries are typically located anteromedial to the iliac
vessels
On pelvic ultrasound, how does one differentiate the ovaries from loops of bowel? -
ANSWER--Abnormal intrauterine pregnancy
-Ectopic pregnancy
-Early intrauterine pregnancy
