URR Incorrect Answers Mock Exam 2
OBGYN
The accuracy of biometric measurement for predicting gestational age in the 3rd trimester is
within:
A. 3-5 days
B. 10 days
C. 14 days
D. 21 days - answer✔✔D
An ovarian mass with the dot-dash pattern internally is most likely:
A. a teratoma
B. a dysgerminoma
C. a mucinous adenocarcinoma
D. a mucinous adneoma - answer✔✔A
Which of the following is a sign of spina bifida in a 13 week fetus?
A. obliterated cisterna magna and intracranial translucency
B. banana sign
C. lemon sign
D. narrow brainstem and dilated cisterna magna - answer✔✔A
How can uterine arteriovenous malformation be differentiated from RPOC?
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A. evaluate serum hCG levels
B. PW Doppler waveforms from an AVM will be high resistance with limited diastolic flow,
while RPOC will demonstrate low velocity, low resistance flow
C. PW Doppler waveforms from an RPOC will be high resistance with limited diastolic flow,
while AVM will demonstrate low velocity, low resistance flow
D. evaluate serum estradiol levels - answer✔✔A
Fetal lung volumetry performed with 3D sonography should be used to help diagnose:
A. skeletal dysplasia
B. fetal asphyxia
C. fetal respiratory failure
D. diaphragmatic hernia - answer✔✔A
_________________ is the preferred method of evaluation of the success of Essure microinsert
placement:
A. MRI
B. transrectal US
C. 3D US
D. hysterosalpingogram - answer✔✔D
Bilaterally enlarged, echogenic fetal kidneys with a normal bladder is most suggestive of:
A. autosomal recessive polycystic kidney disease
B. autosomal dominant polycystic kidney disease
C. multicystic dysplastic kidney disease
D. renal failure - answer✔✔B
Which of the following is correct regarding Doppler evaluation of the umbilical artery?
A. the umbilical artery should always be sampled in a straight segment of the cord
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B. The doppler cursor angle is relatively unimportant when evaluating the umbilical artery
C. 2 doppler samples should be obtained at the placental insertion and averaged before the SD
ratio is reported
D. diastolic flow is a normal finding in post term fetuses - answer✔✔B
An increase in the peak systolic velocity of the middle cerebral artery of a fetus on serial exams
is most suggestive of:
A. fetal anemia
B. trisomy 21
C. hydrancephaly
D. vein of galen malformation - answer✔✔A
Which of the following conditions requires immediate communication of the results to the
radiologist?
A. placental abruption and gastroschisis
B. renal agenesis and ompahlocele
C. premature rupture of membranes and placental abruption
D. renal agenesis, premature rupture of membranes, and placental abruption - answer✔✔C
Which of the following correctly describes the sonographic appearance of the pump twin in a
TRAP?
A. donor twin usually appears normal
B. asymmetric IUGR with aged placenta
C. symmetric IUGR with normal placenta
D. skin edema, ascites, CHF - answer✔✔D
Which of the following table positions is preferred when performing TV?
A. supine