MR Portable Diagnostic, We provide high-quality digital X-rays, ECGs, and all types of healthcare services across Pune and the PCMC region right at the comfort of your home, wea re just a phone call away. The Double Marker Test is a blood test done during pregnancy to check the risk of certain genetic problems in the baby, especially Down syndrome. It's usually done in the first trimester (between 11 and 14 weeks of pregnancy). It looks at two substances in the mother’s blood: Free beta hCG (a pregnancy hormone) PAPP-A (a protein related to the placenta) These results, along with the mother's age and an ultrasound help doctors estimate the baby’s risk of having chromosomal problems. It’s not a diagnostic test, so it doesn't say for sure if something is wrong. It only tells you the chances. If the result shows a high risk, more tests like NIPT or amniocentesis may be recommended.