The First Trimester Flashcards

1
Q

What structure connects the embryo to the yolk sac?
A. Vitelline duct
B. Yolk stalk
C. Amnion
D. Chorionic stalk

A

A. Vitelline duct

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2
Q

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

A

A. Graafian

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3
Q

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

A

C. 24 hours

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4
Q

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

A

D. Ampulla of the uterine tube

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5
Q

With a normal pregnancy, the first structure noted within the
decidualized endometrium is the:
A. Yolk sac
B. Chorionic sac
C. Amniotic cavity
D. Embryo

A

B. Chorionic sac

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6
Q

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

A

B. Zygote

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7
Q

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

A

D. hCG

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8
Q

Sonographically, a normal-appearing 7-week IUP is identified. Within
the adnexa, an ovarian cystic structure with a thick, hyperechoic rim is
also discovered. What does this ovarian mass most likely represent?
A. Theca lutein cyst
B. Corpus luteum cyst
C. Corpus albicans
D. Ectopic pregnancy

A

B. Corpus luteum cyst

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9
Q

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

A

A. Blastocyst

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10
Q

Another name for the chorionic sac is the:
A. Chorionic cavity
B. Extraembryonic coelom
C. Amniotic sac
D. Gestational sac

A

D. Gestational sac

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11
Q

What is often used to medically treat an ectopic pregnancy?
A. Dilatation and curettage
B. Dilatation and evacuation
C. Open surgery
D. Methotrexate

A

D. Methotrexate

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12
Q

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

A

C. Yolk sac

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13
Q

What hormone, produced by the corpus luteum, maintains the thickened
endometrium?
A. Estrogen
B. Progesterone
C. hCG
D. Luteinizing hormone

A

B. Progesterone

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14
Q

What is the most common form of GTD?
A. Complete molar pregnancy
B. Partial molar pregnancy
C. Invasive mole
D. Choriocarcinoma

A

A. Complete molar pregnancy

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15
Q

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

A. Double every 48 hours

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16
Q

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

A

B. Low hCG

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17
Q

Which of the following locations for an ectopic pregnancy would be least
likely?
A. Isthmus of the tube
B. Ampulla of the tube
C. Ovary
D. Interstitial of the tube

A

C. Ovary

18
Q

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

A

C. Decidual reaction

19
Q

The first structure noted within the gestational sac is the:
A. Yolk sac
B. Embryo
C. Decidual reaction
D. Chorionic sac

A

A. Yolk sac

20
Q

NT measures are typically obtained between:
A. 1 and 5 weeks
B. 5 and 8 weeks
C. 8 and 11 weeks
D. 11 and 14 weeks

A

D. 11 and 14 weeks

21
Q

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

A

D. 1 mm per day

22
Q

During a first-trimester sonogram, you note a round, cystic structure
within the fetal head. This most likely represents the:
A. Prosencephalon
B. Mesencephalon
C. Rhombencephalon
D. Proencephalon

A

C. Rhombencephalon

23
Q

The migration of the embryologic 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. Gastroschisis

A

A. Physiologic bowel herniation

24
Q

During a 12-week sonogram, bilateral echogenic structures are noted
within the lateral ventricles of the fetal cranium. These structures most
likely represent:
A. Cerebral tumors
B. Cerebral hemorrhage
C. Anencephalic remnants
D. Choroid plexus

A

D. Choroid plexus

25
Q

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

A

D. Corpus luteum cyst

26
Q

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

A

B. Trisomy 16

27
Q

What hormone maintains the corpus luteum during pregnancy?
A. Estrogen
B. Progesterone
C. Follicle-stimulating hormone
D. hCG

A

D. hCG

28
Q

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

A

A. Ectopic pregnancy

29
Q

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

A

D. Ampullary portion of the uterine tube

30
Q

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

A

D. Advanced paternal age

31
Q

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

A

D. Adnexal ring

32
Q

In the early gestation, where is the secondary yolk sac located?
A. Chorionic cavity
B. Base of the umbilical cord
C. Embryonic cranium
D. Amniotic cavity

A

A. Chorionic cavity

33
Q

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

A

C. Bilateral, multiloculated ovarian cysts

34
Q

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

A

D. Low hCG

35
Q

A malignant form of GTD is:
A. Choriocarcinoma
B. Hydatidiform mole
C. Anembryonic
D. Hydropic villi

A

A. Choriocarcinoma

36
Q

A sonographic examination was performed on a pregnancy 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 IUP. What is the most likely diagnosis?
A. Ectopic pregnancy
B. Molar pregnancy
C. Subchorionic hemorrhage
D, Anembryonic gestation

A

C. Subchorionic hemorrhage

37
Q

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

A

B. Molar pregnancy

38
Q

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

A

D. Small for dates

39
Q

Which of the following is the most likely metastatic location for GTD?
A. Rectum
B. Pancreas
C. Spleen
D. Lungs

A

D. Lungs

40
Q

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. Low beta-hCG

A

D. Low beta-hCG