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Neural Tube Defects - Multiple Gestations Questions With Complete Solutions
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Neural Tube Defects - Multiple Gestations Questions WithComplete Solutions
1-Which of the following represents the most common
complication in a pregnancy with multiple gestations?
a. Preterm labor
b. Twin-twin transfusion syndrome
c. IUGR
d. Retained placenta Correct Answers Answer: a
10. A 32-year-old woman is seen for an elevation of the alpha
fetoprotein level at 2.8 MoM. The sonographic evaluation
reveals a fetal age consistent with last menstrual period without
any anomalies. The placenta has a subchorionic hypoechoic
area. What is the most likely explanation for the elevated alpha
fetoprotein level?
a. Spina bifida occulta
b. Retroplacental clot
c. Inaccurate dating
d. Placenta previa Correct Answers Answer: B
10. Which of the following statements describes why
monochorionic multiple gestations have the highest fetal
mortality?
a. Placental intertwin vascular anastomoses play a key role in
complications associated with monochorionic gestations.
,b. Maternal diabetes is more common in monochorionic
pregnancies, and anomalies and growth disturbance are more
common.
c. Monochorionicity delays fetal development.
d. Placental insufficiency is more common in monochorionic
pregnancies Correct Answers Answer: a
2. A 25-year-old woman has a sonogram at an outpatient
imaging center that revealed lateral ventricles measuring 14.2
mm and is referred to a maternal-fetal center. The patient
declined alpha fetoprotein testing. Sonographic evaluation may
reveal which of the following findings?
a. Ventricular septal defect
b. Open NTD
c. Atrial septal defect
d. Spina bifida occulta Correct Answers Answer: b
2. Which of the following sonographic findings is associated
with twin-twin transfusion syndrome?
a. Reversed umbilical artery flow
b. Malformations of the upper body
c. Different genders with growth discordance
d. Monochorionicity with unequal distribution of AFV Correct
Answers Answer: d
3. A patient is seen for evaluation at 16 weeks' gestation for an
alpha fetoprotein of 4.2 MoM. Which of the following
sonographic findings would suggest a recalculation of the alpha
fetoprotein?
,a. Fetal death
b. Sonographic dating of 12 weeks
c. Twin gestation
d. Sonographic dating of 19 weeks Correct Answers Answer: d
3. What would you expect to see in the donor twin affected by
twin-twin transfusion syndrome?
a. Enlarged bladder
b. Hydrops
c. Double bubble
d. IUGR Correct Answers Answer: d
4. Sonographic evaluation at 19 weeks' gestation reveals an
appropriately growing infant with unilateral talipes. Which of
the following conditions may be associated with this finding?
a. Ectopia cordis
b. Omphalocele
c. ABS
d. Gastroschisis Correct Answers Answer: c
4. Which of the following is a reason for the increased incidence
of multiple gestations?
a. Changes in diet
b. Environmental factors
c. Later life pregnancies
d. Increase in teenage pregnancies Correct Answers Answer: c
, 5. A 36-year-old woman is seen for a sonogram for an elevated
alpha fetoprotein value at 17 weeks' gestation. A large
protrusion of abdominal contents is identified, contained within
a membrane. What is the most likely diagnosis?
a. ABS
b. Diaphragmatic hernia
c. Gastroschisis
d. Omphalocele Correct Answers Answer: d
5. Which of the following is a common maternal complication in
pregnancies with multiple gestations?
a. HELLP syndrome
b. Preeclampsia
c. Renal stones
d. Gallstones Correct Answers Answer: b
6. A 25-year-old woman is seen for an alpha fetoprotein level of
5.7 MoM at 16 weeks' gestation. Sonographic evaluation reveals
free-floating bowel anterior to the abdomen. What is the most
likely diagnosis?
a. Omphalocele
b. LBWC
c. Gastroschisis
d. Ectopia cordis Correct Answers Answer: c
6. Which of the following complications related to the death of
one twin results in the most danger to the other twin?
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