The First Trimester: Review Questions

The structure created by the union of sperm and egg: A. Blastocyst B. Zygote C. Morula D. Ampulla

B. Zygote

The normal gestational sac will grow: A. 2 mm per day B. 3 mm per day C. 1 cm per day D. 1 mm per day

C. 1 cm per day

All of the following are clinical features of an ectopic pregnancy except: A. Pain B. Vaginal bleeding C. Shoulder pain D. Adnexal ring

D. Adnexal ring

Another name for the chorionic sac is the: A. Chorionic cavity B. Embryo C. Yolk sac D. Amnion

D. Amnion

What is the stage of the conceptus that implants within the decidualized endometrium? A. Blastocyst B. Morula C. Zygote D. Ovum

A. Blastocyst

The trophoblastic cells produce: A. Estrogen B. Progesterone C. Follicle-stimulating hormone D. Human chorionic gonadotropin

D. Human chorionic gonadotropin

The herniation of the embryological bowel into the base of the umbilical cord at 9 weeks is referred to as: A. Physiologic bowel herniation B. Pseudo-omphalocele C. Omphalocele D. Gastroscisis

A. Physiologic bowel herniation

What hormone, produced by the corpus luteum, maintains the thickened endometrium? A. Estrogen B. Progesterone C. Human chorionic gonadotropin D. Lutenizing hormone

B. Progesterone

Fertilization typically occurs within _____ after ovulation? A. 40 hours B. 12 hours C. 24 hours D. 56 hours

C. 24 hours

A sonographic examination was performed on a pregnant patient who complained of vaginal bleeding. Sonographically, a crescent-shaped anechoic area is noted adjacent to the gestational sac. The gestational sac contained a 6-week single live intrauterine pregnancy. What is the most likely diagnosis? A. Ectopic pregnancy B. Molar pregnancy C. Subchorionic hemorrhage D. Anembryonic gestation

C. Subchorionic hemorrhage

The most malignant form of gestational trophoblastic disease is: A. Choriocarcinoma B. Hydidaform mole C. Anembryonic D. Hydropic villi

A. Choriocarcinoma

In the first trimester, normal hCG levels will: A. Double every 48 hours B. Triple every 24 hours C. Double every 24 hours D. Double every 12 hours

A. Double every 48 hours

The most common cause of pelvic pain with pregnancy is: A. Ectopic pregnancy B. Heteroectopic pregnancy C. Missed abortion D. Molar pregnancy

A. Ectopic pregnancy

What is the name of the dominant follicle prior to ovulation? A. Graafian follicle B. Corpus luteum C. Morula D. Corpus albicans

A. Graafian follicle

Compared with a normal IUP, the ectopic pregnancy will have a: A. High hCG B. Low hCG C. Markedly elevated hCG D. High AFP

B. Low hCG

All of the following would be associated with a lower-than-normal human chorionic gonadtotropin level except: A. Ectopic pregnancy B. Molar pregnancy C. Blighted ovum D. Spontaneous abortion

B. Molar pregnancy

All of the following are associated with an abnormal nuchal translucency except: A. Trisomy 21 B. Trisomy 16 C. Trisomy 18 D. Turner syndrome

B. Trisomy 16

All of the following are sonographic findings consistent with ectopic pregnancy except: A. Decidual thickening B. Complex free fluid within the pelvis C. Bilateral, multiloculated ovarian cysts D. Complex adnexal mass separate from the ipsilateral ovary

C. Bilateral, multiloculated ovarian cysts

The first sonographically identifiable sign of pregnancy is the: A. Amnion B. Yolk sac C. Decidual reaction D. Chorionic cavity

C. Decidual reaction

During a first trimester ultrasound examination, you note a cystic structure within the fetal head. The most likely represents the: A. Prosencephalon B. Mesencephalon C. Rhombencephalon D. Proencephalon

C. Rhombencephalon

What structure lies within the extraembryonic coelom? A. Gestational sac B. Embryo C. Yolk sac D. Amnion

C. Yolk sac

All of the following are contributing factors for an ectopic pregnancy except: A. Pelvic inflammatory disease B. Assisted reproductive technology C. Intrauterine contraceptive device D. Advanced paternal age

D. Advanced paternal age

The most common site of fertilization is within the:] A. Isthmus of the uterine tube B. Uterine fundus C. Cornu of the uterine tube D. Ampulla of the uterine tube

D. Ampulla of the uterine tube

The most common location of an ectopic pregnancy is the: A. Ovary B. Interstitial portion of the uterine tube C. Cornual portion of the uterine tube D. Ampullary portion of the uterine tube

D. Ampullary portion of the uterine tube

The most common pelvic mass associated with pregnancy is the: A. Uterine leiomyoma B. Dermoid cyst C. Theca lutein cyst D. Corpus luteum cyst

D. Corpus luteum cyst

All of the following may be sonographic findings in the presence of an ectopic pregnancy except: A. Pseudogestational sac B. Corpus luteum cyst C. Adnexal ring D. Double sac sign

D. Double sac sign

The first definitive sonographic sign of an intrauterine pregnancy is the recognition of a/an: A. Yolk sac B. Embryo C. Decidual reaction D. Gestational sac

D. Gestational sac

All of the following are sonographic findings consistent with a hydidaform mole except: A. Heterogeneous mass within the endometrium B. Bilateral theca lutein cysts C. Hyperemesis gravidarum D. Low hCG

D. Low hCG

Which of the following locations is most likely with metatastic gestational trophoblastic disease? A. Rectum B. Brain C. Spleen D. Lungs

D. Lungs

All of the following are clinical findings consistent with a molar pregnancy except: A. Vaginal bleeding B. Hypertension C. Uterine enlargement D. Small for dates

D. Small for dates