Fetuses with premature atrial contractions can later be found to have which of the following arrhythmias?
c. First-degree heart block
d. Supraventricular tachycardia
Sustained fetal tachyarrhythmias can lead to which of the following fetal complications?
c. Fetal-growth restriction
Which of the following agents are commonly administered to women to treat fetal tachyarrhythmias?
The majority of cases of congenital adrenal hyperplasia are caused by which enzyme deficiency?
a. 21-Hydroxylase deficiency
b. 11β-Hydroxylase deficiency
c. 17α-Hydroxylase deficiency
d. 3β-Hydroxysteroid dehydrogenase deficiency
Before what gestational age does maternal treatment with dexamethasone need to commence to prevent virilization of a female fetus with congenital adrenal hyperplasia?
A 31-year-old woman presents with her husband for her screening ultrasound. At 19 weeks’ gestation the fetal abnormality pictured below is found. You counsel her that as this mass expands, the fetus is at risk for which of the following?
c. Depressed cardiac output