Why doctors suggest the Double Marker Test Even with a Normal NT Scan Result | Dr K.Sreelalitha |HCC
The Nuchal Translucency (NT) Scan is a vital part of first-trimester screening; however, according to Gynaecologist Dr K.Sreelalitha from HCC Hospital, relying on it alone is insufficient for a complete risk assessment. This short video explains why the Double Marker Test is essential to perform in conjunction with a normal NT scan. The NT scan measures fluid behind the baby's neck, giving a physical indication of potential chromosomal abnormalities like Down Syndrome (Trisomy 21) or Edwards Syndrome (Trisomy 18). However, the Double Marker Test (also known as the Dual Test) analyses key hormones in the mother's blood—Free Beta-hCG and PAPP-A (Pregnancy-Associated Plasma Protein-A).
Combining the results of both the NT scan and the Double Marker blood test provides a significantly more accurate and comprehensive risk score, helping expectant parents make informed decisions. Learn about the importance of this combined screening and how it drastically reduces the chances of missed diagnoses. If you are pregnant or planning to be, understand this critical step in prenatal care and fetal screening.
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