FE Clinical Indications & Risk Factors

Question 1

Which maternal condition increases the risk of fetal congenital heart disease?

Accepted Answer

Diabetes mellitus

Answer

Maternal diabetes mellitus, especially when poorly controlled during early pregnancy, is a significant risk factor for various congenital anomalies, including congenital heart disease (CHD). High glucose levels can disrupt critical stages of fetal cardiac development. Therefore, fetal echocardiography is often indicated in pregnancies complicated by maternal diabetes to screen for these potential issues.

Question 2

What is a common clinical indication for performing fetal echocardiography?

Accepted Answer

Previous child with congenital heart disease

Answer

A family history of congenital heart disease (CHD), particularly in a previous child, significantly increases the risk of recurrence in subsequent pregnancies. This elevated risk makes fetal echocardiography a crucial screening tool. Identifying such a history allows for targeted prenatal evaluation and counseling to detect potential cardiac anomalies early.

Question 3

Which chromosomal abnormality is most commonly associated with cardiac defects?

Accepted Answer

Trisomy 21

Answer

Trisomy 21, also known as Down syndrome, is the chromosomal abnormality most frequently associated with congenital heart defects. Approximately 50% of individuals with Trisomy 21 have some form of heart defect, with atrioventricular septal defects (AVSDs) being particularly common. Therefore, a diagnosis or suspicion of Trisomy 21 is a strong indication for fetal echocardiography.

Question 4

Which fetal finding on routine ultrasound would prompt referral for fetal echocardiography?

Accepted Answer

Increased nuchal translucency

Answer

Increased nuchal translucency (NT) thickness on a first-trimester ultrasound is a well-established soft marker for various fetal anomalies, including chromosomal abnormalities and congenital heart disease. Even in the absence of a chromosomal defect, a significantly increased NT measurement is independently associated with an elevated risk of major cardiac defects. Consequently, it warrants a referral for a detailed fetal echocardiogram.

Question 5

Why is lupus in the mother a concern in fetal cardiology?

Accepted Answer

Associated with fetal arrhythmias

Answer

Maternal systemic lupus erythematosus (SLE), particularly when anti-Ro/SSA and anti-La/SSB antibodies are present, can lead to fetal heart block and other arrhythmias. These antibodies can cross the placenta and damage the fetal cardiac conduction system. Fetal echocardiography is essential for monitoring the fetal heart rhythm and structure in these high-risk pregnancies.

(FE) Fetal Echocardiography Certification Practice Test

(FE) Fetal Echocardiography Certification Practice Test

FE Clinical Indications & Risk Factors