When Is Doppler Ultrasound Done in Pregnancy?: In most of the cases doppler ultrasound is done between 24 and 40 weeks during third trimester. But in high-risk pregnancies, it might be done earlier. The scan used to assess blood flow in maternal and fetal vessels, that how blood moves through the placenta, umbilical cord, and the baby’s brain and heart. If the mother has high blood pressure, diabetes, or the baby isn’t growing well, doctors may recommend an early Doppler scan.
The scan shows how well blood is moving to the baby. It checks if the placenta is working properly and if the baby is getting enough oxygen and nutrients.
If there’s a problem with blood flow, the scan can catch it early. This gives doctors time to act. It may lead to extra scans or early delivery if needed.
When Is Doppler Ultrasound Done in Pregnancy?
A Doppler ultrasound checks how well blood is flowing. Doppler ultrasound in pregnancy is used to see how blood moves between the placenta and your baby. It helps doctors make sure your baby is getting enough oxygen and nutrients.
When is it usually done?
Most Doppler ultrasounds are done in the third trimester, around 28 to 40 weeks. But sometimes, it’s needed earlier. It depends on your health and your baby’s growth.
You might need a Doppler scan if:
- Your baby is smaller than expected
- You have high blood pressure
- You had problems in a past pregnancy
- You have diabetes or other health issues
- Your baby isn’t moving as much
- You’re carrying twins or more
Not every pregnant person needs a Doppler scan. If your pregnancy is going well, your doctor may not suggest it.
What does the scan check?
It looks at:
- Umbilical artery: checks blood from you to the baby
- Middle cerebral artery: checks blood in the baby’s brain
- Ductus venosus: checks blood flow to the baby’s heart
The test is safe. It uses sound waves, not radiation. It doesn’t hurt. It’s like a regular ultrasound but focused on blood flow.
What happens during the scan?
You lie down. A gel is put on your belly. The doctor or technician moves a small device over your skin. You might see color patterns on the screen. These show how blood is flowing.
The whole thing usually takes 20 to 30 minutes. You can go home right after.
What do the results mean?
If the blood flow is normal, that’s a good sign. If it’s low or shows signs of stress, your doctor might monitor you more closely. In some cases, they may suggest delivering the baby early.
Final thoughts
Doppler ultrasound helps check if your baby is doing okay. It’s not always needed. But if your doctor suggests it, it’s because they want to make sure your baby is growing well and getting enough support from the placenta.
Always ask questions if you’re unsure. It’s okay to want clear answers. Your doctor is there to guide you.