FAQs on Prenatal Screening Tests

Prenatal screening can feel overwhelming for expecting parents. Between ultrasounds, blood tests, and advanced options like NIPT, many wonder what’s necessary and what results actually mean.

To help you feel confident, we’ve answered the most frequently asked questions about prenatal screening tests.

👉 Also Read: Ultrasound vs Blood Tests in Prenatal Screening

What is the purpose of prenatal screening?

Prenatal screening estimates the risk of certain chromosomal and structural conditions in the baby. While not diagnostic, these tests provide valuable information to guide further care.

When are prenatal screening tests done?

First Trimester: 11–14 weeks (NT scan + blood test).
Second Trimester: 15–22 weeks (quad screen + anatomy scan).
Advanced Screening (NIPT): Can be taken as early as 10 weeks.

Are prenatal screening tests safe?

Yes ✅. Screenings like ultrasound, blood tests, and NIPT are non-invasive and safe for both mother and baby.

How accurate are screening tests?

First trimester combined screening: ~85% accuracy for Down syndrome.
Quad screen: ~75–80% accuracy.
NIPT: Over 99% sensitivity for common trisomies.

👉 Learn More: NIPT Test – Benefits, Accuracy & When to Take It

Do I need both first and second trimester screenings?

Yes. Each screening provides different insights:

First trimester → early risk assessment.
Second trimester → structural checks and confirmation.

What happens if my results are abnormal?

An abnormal result doesn’t confirm a problem. Your doctor may suggest diagnostic tests such as amniocentesis or CVS for confirmation.

👉 Related Blog: Prenatal Screening vs Diagnostic Tests

Can prenatal screening tell me my baby’s gender?

Standard screenings do not determine gender. However, NIPT can reveal the baby’s sex chromosomes if parents choose to know.

Do I need genetic counseling for prenatal screening?

Genetic counseling is recommended if:

You receive a high-risk result.
You have a family history of genetic disorders.
You are 35 years or older at delivery.

Final Thoughts

Prenatal screening tests are safe, helpful, and designed to provide peace of mind for expecting parents. While they don’t give a definite diagnosis, they offer early insights that guide pregnancy care.

Always discuss your results with a doctor or genetic counselor to make the best decisions for you and your baby.

FAQs on Prenatal Screening Tests