What does the PREGA Screen (Dual Marker) test include?
This test measures maternal serum PAPP-A and free β-hCG and, if abnormal, reflexes to NIPT or karyotyping to assess fetal chromosomal status.
How does Metropolis Healthcare perform this test?
Metropolis Healthcare uses validated immunoassays for the dual markers and advanced molecular or cytogenetic methods for reflex NIPT or karyotyping when indicated.
Who should take this test?
Pregnant women in the first trimester, typically between 11–14 weeks gestation, seeking early assessment of fetal chromosomal risk may be advised to take this test.
What sample type is required?
A maternal serum sample is required for dual-marker screening, with additional samples as needed for NIPT or karyotyping.
Why is this screening approach important?
It allows early detection of high-risk pregnancies for trisomies or chromosomal abnormalities, guiding timely counseling, diagnostic follow-up, and pregnancy management.
How reliable are results from Metropolis Healthcare?
Metropolis Healthcare follows strict quality control, validated assay protocols, and expert interpretation to ensure accurate and reproducible screening and reflex results.
Is any preparation needed before the test?
No fasting is usually required; patients should follow any instructions from their physician regarding sample collection.
How soon are results available?
Turnaround time may vary depending on reflex testing, but Metropolis Healthcare provides timely reports to support early prenatal decision-making.