Ch. 23 The 1st Trimester Flashcards
What's the name of the dominant follicle prior to ovulation? Graafian Corpus luteum Morula Corpus albicans
Graafian
Fertilization typically occurs w/in \_\_\_\_\_ after ovulation. 40 hrs 12 hrs 24 hrs 56 hrs
24 hrs
The most common site of fertilization is w/in the:
- Isthmus of the uterine tube
- Uterine fundus
- Cornu of the uterine tube
- Ampulla of the uterine tube
Ampulla of the uterine tube
The structure created by the union of sperm and egg is the: Blastocyst Zygote Morula Ampulla
Zygote
The trophoblastic cells produce: Estrogen Progesterone FSH hCG
hCG
What's the stage of the conceptus that implants w/in the decidualized endometrium? Blastocyst Morula Zygote Ovum
Blastocyst
Another name for the chorionic sac is the:
- Chorionic cavity
- Extraembryonic coelom
- Amniotic sac
- Gestational sac
Gestational sac
What structure lies w/in the extraembryonic coelom? Gestational sac Embryo Yolk sac Amnion
Yolk sac
What hormone, produced by the corpus luteum, maintains the thickened endometrium? Estrogen Progesterone hCG LH
Progesterone
In the 1st trimester, normal hCG levels will:
- Double every 48 hrs
- Triple every 24 hrs
- Double every 24 hrs
- Double every 12 hrs
Double every 48 hrs
Compared w/ a normal IUP, the ectopic pregnancy will have a:
- High hCG
- Low hCG
- Markedly elevated hCG
- High AFP
Low hCG
The 1st sonographically identifiable sign of pregnancy is the: Amnion Yolk sac Decidual reaction Chorionic cavity
Decidual reaction
The 1st definitive sonographic sign of an intrauterine pregnancy is the recognition of a/an: Yolk sac Embryo Decidual reaction Gestational sac
Gestational sac
The normal gestational sac will grow: 2mm/day 3mm/day 1cm/day 1mm/day
1mm/day
During a 1st trimester US exam, you note a cystic structure w/in the fetal head. This most likely represents the: Prosencephalon Mesencephalon Rhombencephalon Proencephalon
Rhombencephalon
The herniation of the embryologic bowel iinto the base of the umbilical cord at 9wks is referred to as:
- Physiologic bowel herniation
- Pseudo-omphalocele
- Omphalocele
- Gastroschisis
Physiologic bowel herniation
The most common pelvic mass associated w/ pregnancy is the:
- Uterine leiomyoma
- Dermoid cyst
- Theca luteum cyst
- Corpus luteum cyst
Corpus luteum cyst
All of the following are associated w/ an abnormal nuchal translucency except: Trisomy 21 Trisomy 16 Trisomy 18 Turner syndrome
Trisomy 16
The most common cause of pelvic pain w/ pregnancy is:
- Ectopic pregnancy
- Heterotopic pregnancy
- Missed abortion
- Molar pregnancy
Ectopic pregnancy
The most common location of an ectopic pregnancy is the:
- Ovary
- Interstitial portion of the uterine tube
- Cornual portion of the uterine tube
- Ampullary portion of the uterine tube
Ampullary portion of the uterine tube
All of the following are contributing factors for an ectopic pregnancy except:
- PID
- Assisted reproductive therapy
- Intrauterine contraceptive device
- Advanced paternal age
Advanced paternal age
All of the following are clinical features of an ectopic pregnancy except: Pain Vaginal bleeding Shoulder pain Adnexal ring
Adnexal ring
All of the following are sonographic findings consistent w/ ectopic pregnancy except:
- Decidual thickening
- Complex free fluid w/in the pelvis
- Bilateral, multiloculated ovarian cysts
- Complex adnexal mass separate from the ipsilateral ovary
Bilateral, multiloculated ovarian cysts
All of the following are consistent w/ a hydatidiform mole except:
- Heterogenous mass w/in the endometrium
- Bilateral theca lutein cysts
- Hyperemesis gravidarum
- Low hCG
Low hCG
The most malignant form of gestational trophoblastic disease is: Choriocarcinoma Hydatidiform mole Anembryonic Hydropic villi
Choriocarcinoma
A sonographic exam was performed on a pregnancy pt who complained of vaginal bleeding. Sonographically, a crescent-shaped anechoic area is noted adjacent to the gestational sac. The gestational sac contained a 6-wk single live intrauterine pregnancy. What’s the most likely diagnosis?
- Ectopic pregnancy
- Molar pregnancy
- Subchorionic pregnancy
- Anembryonic gestaion
Subchorionic pregnancy
All of the following would be associated w/ a lower-than-normal hCG level except:
- Ectopic pregnancy
- Molar pregnancy
- Blighted ovum
- Spontaneous abortion
Molar pregnancy
All of the following are clinical findings consistent w/ a molar pregnancy except:
- Vaginal bleeding
- Hypertension
- Uterine enlargement
- Small for dates
Small for dates
Which of the following locations is most likely w/ metastatic gestational trophoblastic disease? Rectum Brain Spleen Lungs
Lungs
All of the following may be sonographic findings in the presence of an ectopic pregnancy except:
- Pseudogestational sac
- Corpus luteum cyst
- Adnexal ring
- Double sac sign
Double sac sign
