Answer
The double marker test is a prenatal screening test that assesses the risk of Down syndrome and other chromosomal abnormalities in the fetus. This test measures two specific proteins in the mother's blood—alpha-fetoprotein (AFP) and beta-human chorionic gonadotropin (beta-hCG). Elevated or low levels of these markers can indicate an increased risk of certain conditions. The double marker test is a screening tool, not a diagnostic test. An abnormal result may require further diagnostic testing, such as an amniocentesis or chorionic villus sampling (CVS), to confirm a diagnosis. It's important to discuss the results with your doctor, who will explain their implications.
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