OB Review #2

Findings

100

a grape like mass is seen in utero with a higher than normal for dates HCG.  most likely diagnosis?

Gestational Trophoblastic Disease

200

fetal bowel is seen free floating with no membrane encasing it.  diagnosis?

gastroshisis

300

cyst/like space in the posterior portion of the skull from dilated 4th ventricle  most likely diagnosis

Dandy Walker

400

exposed spine in the lumbar area shown in transvers to bulge outside of the border of the skin.  Diagnosis?

Spina Bifida

500

Abdominal wall defect that has bowel, liver, and/or heart contained within a membrane and associated with chromosomal anomalies. Diagnosis?

Omphalocele

Patient History

100

currently pregnant patient has had 2 live births, 1 miscarriage, and 0 ectopics.  

G?  P?  A?  E?  

G4  P2  A1  E0

200

Post partum patient presents with 3 live births, 0 abortions, 0 ectopics.

G?  P?  A?  E?  

G3  P3  A0  E0

300

Patient presents to doctor on first initial visit after positive pregnancy test at home.  Her stomach is measuring larger than LMP dates.

Name 3 reasons why this could be.  

fibroids/other masses/cysts

multiples

wrong LMP dates

gestational trophoblastic disease

400

Patient presents with history of IUD placed 1 year prior.  Today she has positive pregnancy test, with rt adnexal pain.  What is she at an increased risk for?

Ectopic

500

Currently pregnant patient presents with 

G4  P4  A0  E0

Explain why this is not typical.  

Patient must have had twins in prior pregnancies

Indications for Exam

100

What the process is called when a patient decides to eliminate specific fetus' while still in utero.  

Selective reduction

200

Taking a sample of the fluid around the baby with ultrasound guidance

amniocentesis

300

What type of ultrasound would be ordered for an anatomy/size/date ultrasound?  

Targeted or Anatomical Survey Ultrasound

typically between 18-22 weeks

500

pt presents with dark spotting.  mosts likely diagnosis?

subchorionic hemorrhage

Anatomy

100

Name the most dangerous place for an ectopic to implant

Cornua

200

Name the muscle or middle layer of the uterus

myometrium

300

the corpus luteum generates which horomone?

progesterone

400

what does AFI stand for?

amniotic fluid index

500

what kind of twins share a single chorion and amnion?

mono-mono

Protocol

100

Name the first 3 images you should acquire when starting an ob scan.

cervix

presentation 

placenta location

200

how many measurements of the gestational sac do you take to get a mean gestational sac diameter?

3

300

According to ALARA what do we use to obtain a fetal heart rate?

M-Mode

400

In 2nd and 3rd trimester ultrasounds, name the 2 posterior brain structures we look for and measure.

Cerebellum

cisterna magna

500

what is the name of the exam performed to evaluate the fetal well being?

Biophysical Profile (BPP)