OBGYN Flashcards
(152 cards)
Choose the quantitative pregnancy test
a) thyroxin
b) progesterone
c) serum
d) urine
c) serum
Name the solid ball of developing cells which occur after fertilization
Morula
What hormone is secreted by both the syncytiotrophoblast and placenta
hCG
What process allows for spermatic penetration of the ovum
Acrosome disintegration
Where does implantation of the embryo occur
Endometrium
A patient presents as small for gestational age with a known LMP 10 weeks ago. The sonographic exam reveals a gestational sac equivalent to a 6 week gestation. Select the most likely differential
a) Incomplete abortion
b) Miscarriage
c) Blighted Ovum
c) Blighted ovum
Select the sonographic findings that increase suspicion of a choriocarcinoma
a) soft tissue mass filling the uterine cavity
b) normal fetus and placenta with a cystic vesicular portion
c) hyperechoic shadowing mass within the myometrium
d) mass invasion through the uterine myometrium to the serosa with hypoechoic liver lesions
d)
What describes an oocyte without maternal chromosomes resulting in proliferation of swollen chorionic villi and the absence of identifiable embryonic structures
Complete hydatidiform mole
What sonographic finding in the uterus is made up of bleeding from the decidulized endometrium
Pseudosac
What is the discriminatory cutoff for b-hCG
Above 1,500 to 2,500
What portion of the fallopian tube has the highest incidence of ectopic gestations
Ampullary
Which type of ectopic pregnancy implants on previous cearean scars
Intramural
What measurement from the frontal to the occipital bone is obtained at the level of the thalami
Occipito-frontal diameter (OFD)
Which cranial bones are the landmarks for measurement of the BPD
Parietal bones
What is the most common fetal ratio parameter
Head circumference/ abdominal circumference (HC/AC)
What portion of the humerus does the sonographer measure to obtain the length
Ossesous diaphysis
Choose the maternal factor that results in delayed placental maturation of a 5 cm placenta
a) Rh dieases
b) Gestational diabetes
c) Syphillis
d) Choriooangioma
b) Gestational diabetes
Decidual formation defect with abnormal placental attachment to the uterine wall describes
Placenta accreta
Which of the following describes the sonographic characteristic of excessive Wharton’s jelly
a) small mas adjacent to abdomen
b) irregular protrusion from the cord
c) cystic dilation up to 6 cm, usually located close to the fetus
d) variably echogenic, soft tissue mass with three vessels visible
d) variably echogenic, soft tissue mass with three vessels visible
What is the chromosomal cause for a thick placenta
Triploidy
What form of placenta previa lies within 2 cm of the internal cervical os
Low-lying placenta
Select the differential for an intraplacental lesion
a) Subchorionic hemorrhage
b) Circumvallate placenta
c) Fibrin deposition
d) Vasa previa
c) Fibrin deposition
At which Carnegie stage does the brain folding begin
Stage 9
What anatomy is imaged on an axial plane at the cerebellar level
Cisterna magna