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Fetal Therapy

All EXCEPT which of the following are examples of fetal conditions that may be amendable to medical therapy delivered transplacentally?

a. Dandy-Walker malformation

b. Supraventricular tachycardia

c. Congenital adrenal hyperplasia

d. Congenital cystic adenomatoid malformation

When a fetal rhythm disturbance is suspected, what type of sonography should be performed to determine the relationship between the atrial and ventricular rates?

a. M-mode

b. Power Doppler

c. 3-dimensional

d. Color Doppler

What is the most common fetal arrhythmia?

a. Atrial flutter

b. Congenital heart block

c. Supraventricular tachycardia

d. Premature atrial contraction

A 16-year-old primigravida is referred for sonographic examination because of a suspected fetal arrhythmia. The following image is obtained and demonstrates a premature atrial contraction (blue arrow). What is the most appropriate treatment for this condition?

Reproduced with permission from Cunningham FG, Leveno KJ, Bloom SL, et al (eds): Fetal imaging. In Williams Obstetrics, 24th ed. New York, McGraw-Hill, 2014, Figure 10-24.

a. Digoxin

b. Amiodarone

c. Corticosteroids

d. None of the above

A 16-year-old primigravida is referred for sonographic examination because of a suspected fetal arrhythmia. The following image is obtained and demonstrates a premature atrial contraction (blue arrow). For the patient, you counsel her that this condition can progress to supraventricular tachycardia in approximately what percentage of fetuses?

Reproduced with permission from Cunningham FG, Leveno KJ, Bloom SL, et al (eds): Fetal imaging. In Williams Obstetrics, 24th ed. New York, McGraw-Hill, 2014, Figure 10-24.

a. 2%

b. 5%

c. 15%

d....

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