The Preeclampsia ScreenSM | T1 Screen

The First and Only Screening Test for Early Onset Preeclampsia

Preeclampsia ScreenSM| T1 is an advanced blood test that helps determine your risk for early onset preeclampsia.

Performed between 10 weeks, 0 days and 13 weeks, 6 days of pregnancy, the test combines personal history, ultrasound measurements, blood pressure, and analysis of three biological “markers” in the mother’s blood to yield a risk assessment that your physician will present to you.

Pregnant woman drinking from mug

How It Works

  • Baby icon

    Demographics:

    Your medical history and demographic information (e.g., height, weight, ethnicity and smoking status) are needed to provide an accurate risk assessment for early onset preeclampsia.

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    Biochemical:

    A maternal blood sample is analyzed for three biochemical markers: PAPP-A (pregnancy-associated plasma protein-A); AFP (alpha fetoprotein); and PlGF (placental growth factor).

  • Ultrasound icon

    Biophysical:

    Your doctor may also take one or both of these additional biophysical measurements:

    • Mean arterial pressure (MAP) involves taking exact blood pressure measurements from both arms
    • Uterine artery Doppler pulsatility index (UtAD-PI) examines the uterine artery with a special type of sonogram (ultrasound)

Uterine Artery Doppler Pulsatility Index

Normal First Trimester Uterine Artery Doppler (UtAD)

Normal

Abnormal First Trimester Uterine Artery Doppler (UtAD)

Abnormal

Detection

EOPE

Detection Rate
False Positive

Test Results

Turn around time: Results can be expected 1-3 business days from the time the sample is received at the laboratory.

learn more about why NTD Eurofins has been the laboratory to trust for over 30 years.

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Trust

Our goal is to educate and empower

Know your choices, understand your options, and talk you your healthcare provider about the best prenatal screening program for you.

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