Chapter 23 (The First Trimester) Flashcards
Fertilization typically occurs within ____ hours after ovulation?
24 hours
The most common site of fertilization is within the:
ampulla of the uterine tube
The structure created by the union of sperm and egg is the:
zygote
The trophoblastic cells produce:
hCG
What is the stage of the conceptus that implants within the decidualized endometrium?
blastocyst
Another name for the chorionic sac is the:
gestational sac
What structure lies within the extraembryonic coelem?
yolk sac
What hormone, produced by the corpus luteum, maintains the thickened endometrium?
progesterone
In the first trimester, normal hCG levels will :
double every 48 hours
Compared with a normal IUP, the ectopic pregnancy will have a ____ hCG?
low
The first son. sign of pregnancy:
decidual reaction
The first definitive son. sign of an intrauterine pregnancy is the recognition of a:
gestational sac
The normal gestational sac will grow:
1mm a day
During a first trimester exam, you note a cystic structure within the fetal head. This most likely represents the:
rhombencephalon
The herniation of the embryologic bowel into the base of the umbilical cord at 9 weeks is referred to as:
physiologic bowel herniation
The most common pelvic mass associated with pregnancy is the:
corpus luteum cyst
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
The most common cause of pelvic pain with pregnancy is:
ectopic pregnancy
The most common location of ectopic pregnancy is:
ampullary portion of uterine tube
All of the following are contributing factors for an ectopic pregnancy except: A. PID B. Assisted reproductive therapy C. IUCD D. Advanced paternal age
D. advanced paternal age
All of the following are sonographic findings consistent with an ectopic pregnancy except:
A. Decidual thickening
B. Complex free fluid within pelvis
C. Bilateral, multiloculated ovarian cysts
D. Complex adnexal mass separate from the ipsilateral ovary
C. bilateral, multilocuated ovarian cyst
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
All of the following are consistent with a hydatidiform mole except:
A. heterogenous mass within the endometrium
B. bilateral theca lutein cysts
C. hyperemesis gravidarum
D. low hCG
D. low hCG
The most malignant form of gestational trophoblastic disease is:
choriocarcinoma
Exam performed on pregnant patient with vaginal bleeding. Sonographically, a crescent shaped anechoic area is noted adjacent to the gestational sac. There is a 6 week single live IUP. Diagnosis?
subchorionic hemorrhage
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
B. molar pregnancy
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
Which of the following locations is most likely with metastatic gestational trophoblastic disease? A. rectum B. brain C. spleen D. lungs
D. lungs
All of the following may be son. 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
