What is ‘Dual Test’ and when is it done?

What is ‘Dual Test’ and when is it done?

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What is ‘Dual Test’ and when is it done?

It is a blood examination in which free beta-HCG and PAPP-A levels are tested. This test as well as nuchal translucency procedure (NT) should be performed on each patient as an element of integrated testing.

The test is done between 11 + 0 and 13 + 6 week of pregnancy.

The test is most efficient between 10 and 11 week of pregnancy. The risk evaluation of Down syndrome occurrence in foetus is based on the mother’s age, foetal heart rate (FHR), nuchal translucency scan (NT), dual test and has 90% rate of sensitivity. In turn, free beta-HCG and PAPP-A levels are dependent on the equipment used, ethnicity, smoking habits and the manner of impregnation. In SONOKARD Medical Centre we use state of the art DELPHIA EXPRESS – one of the three devices certified by (Foetal Medicine Foundation)