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Fetal Echocardiogram | Pregnancy Power Hour
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Prenatal Test · diagnostic

Fetal Echocardiogram

High-risk onlyweeks 18–24

A fetal echocardiogram, or fetal heart ultrasound, is a detailed diagnostic scan of your baby's heart, typically performed between weeks 18 and 24, when specific risk factors are present.

3 min read

Quick answer

A fetal echocardiogram, or fetal heart ultrasound, is a detailed diagnostic scan of your baby's heart, typically performed between weeks 18 and 24, when specific risk factors are present.

On this page
  1. What it is
  2. When and how it happens
  3. What the results mean
  4. Questions worth asking

A fetal echocardiogram is a specialized ultrasound that offers a detailed look at your baby's heart, going beyond what a routine anatomy scan provides to assess its structure and function. This diagnostic tool is not part of routine prenatal care; instead, it's recommended for those with specific indications, offering a clearer picture and the opportunity for proactive planning.

What it is

This detailed cardiac scan, often called a fetal echo, is essentially a very focused ultrasound of your baby's heart. While your routine anatomy scan provides a general overview of your baby's development, including a basic look at the heart, a fetal echocardiogram delves much deeper. It meticulously examines the intricate structures and the precise function of the fetal heart. This level of detail allows specialists to identify potential congenital heart conditions that might not be visible during a standard scan. Understanding these details can bring immense clarity and peace of mind, especially when there are specific concerns.

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When and how it happens

Fetal echocardiograms are typically performed during the second trimester, specifically between weeks 18 and 24. This timing allows for optimal visualization as your baby's heart is developed enough to be thoroughly assessed. Unlike a standard prenatal visit, this test requires a referral to a specialist, such as a pediatric cardiologist or a maternal-fetal medicine (MFM) specialist. You might be referred if there's a family history of congenital heart disease, if you have certain maternal health conditions like diabetes or lupus (SLE), or if an abnormal cardiac finding was noted during your routine anatomy scan. Even an IVF pregnancy can be an indication for this detailed scan. The experience itself is similar to other ultrasounds; you'll lie comfortably while a sonographer or specialist moves a transducer over your abdomen, capturing images of your baby's heart. It's a calm and non-invasive procedure focused on gathering comprehensive information. Just as with a Cervical Length Ultrasound, it's about getting a focused look at a specific area of concern.

What the results mean

If a fetal echocardiogram is recommended, it's a step towards gaining more information, not a cause for immediate alarm. The primary goal is to provide a highly detailed assessment of your baby's heart. When performed by a trained cardiologist or MFM specialist, this scan can significantly improve the detection of major congenital heart defects compared to a routine anatomy scan. Should any cardiac findings be identified, many can be managed prenatally. This often involves careful delivery planning at a specialized medical center equipped to provide immediate care for your baby after birth. Having this information in advance allows you and your care team to make informed decisions about your birth plan and postpartum support. It's about being prepared and creating the most supportive environment for your baby's arrival.

Questions worth asking

Navigating prenatal testing can bring up many questions, and you get to decide what feels right for you and your family. If a fetal echocardiogram is suggested, it's a wonderful opportunity to engage collaboratively with your care provider. You might find it helpful to ask about the specific reasons for the recommendation in your unique situation. Understanding the 'why' behind any test empowers you to make truly informed decisions. For example, if you have maternal diabetes, understanding how that might relate to your baby's heart health, similar to how Continuous Glucose Monitoring (CGM) in Pregnancy can help manage your own health, can be very clarifying. You might also ask about what to expect during the appointment itself, who will be performing the scan, and how long it might take to receive the results. Exploring potential next steps, should any findings arise, can also help you feel more grounded and prepared. Remember, this is your pregnancy, and your peace of mind matters. Just as you might discuss the benefits of a Tdap Vaccination (Pertussis Booster) with your provider, open communication about diagnostic tests is key to feeling confident in your choices. Your provider is your best resource for your specific situation.

Common questions

Is a fetal echocardiogram part of routine prenatal care?+

No, it is not. A fetal echocardiogram is a diagnostic test recommended for specific high-risk situations, not for every pregnancy.

Why would I need a fetal echocardiogram?+

It's indicated for reasons like family history of heart conditions, maternal diabetes or lupus, abnormal findings on a routine scan, or IVF pregnancy.

When is a fetal echocardiogram usually performed?+

This detailed scan is typically performed during the second trimester, specifically between weeks 18 and 24, for optimal visualization.

Brittany Nance

“Pregnancy is under-supported at every week. This is the kind of clear, calm guidance I give my one-on-one clients — and the questions worth taking back to your provider.”

Brittany Nance · Pregnancy Wellness Consultant · full-spectrum doula

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Written by Brittany Nance, Pregnancy Wellness Consultant· BADT Full Spectrum Doula · Founder, Pregnancy Power Hour
Last reviewed July 1, 2026

This is evidence-informed education from a birth-doula perspective, not medical advice. Always discuss your individual situation with your prenatal care provider.

On this page

  1. What it is
  2. When and how it happens
  3. What the results mean
  4. Questions worth asking

Keep reading

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