Double Marker Test
Double Marker Test
- Double Marker test is done at 12-14 weeks of pregnancy generally along with Level 1 Ultrasound
- No special preparation is required.
- The test aims at calculating the risk of Down Syndrome in the child
What is Double Marker Test ?
A double marker test is done to assess the risk of baby to be born with Down Syndrome. However, this is not a conclusive test but still gives fair idea about the risk. This test is predictive rather than diagnostic. The levels of beta-human chorionic gonadotropin (beta-hCG) and pregnancy-associated plasma protein A (PAPP-A) in the blood are measured (PAPP-A). There is some evidence that HCG and PAPP-A levels are atypical in chromosomally-defective pregnancies. This double marker test is generally seen along with Level 1 or NT scan by the gynecologist.
At Maurya Labs, the cost of Double Marker Test is Rs. 2500 and the report is made available on the same day.
Reported Parameters
The result of the double marker test is presented in the form of ratios.
- If the ratio is between 1:10 to 1:250, it is termed as a “screen positive” result which lies in the high-risk zone.
- A ratio of 1:1000 or above is termed as “screen negative” result which shows a low risk.
All The Questions that you might have
- What is Double Marker Test ?
- What does Double Marker test measure?
- Why should I do the Double Marker Test?
- How is the Double Marker test done?
A double marker test is done to assess the risk of baby to be born with Down Syndrome. However, this is not a conclusive test but still gives fair idea about the risk. This test is predictive rather than diagnostic. The levels of beta-human chorionic gonadotropin (beta-hCG) and pregnancy-associated plasma protein A (PAPP-A) in the blood are measured (PAPP-A). There is some evidence that HCG and PAPP-A levels are atypical in chromosomally-defective pregnancies. This double marker test is generally seen along with Level 1 or NT scan by the gynecologist.
The Double Marker Test measures the levels of beta-human chorionic gonadotropin (beta-hCG) and pregnancy-associated plasma protein A (PAPP-A) in the blood are measured (PAPP-A). It assesses the risk of child having Down Syndrome.
Your gynecologist will advise you double marker test around 12-14 weeks of pregnancy to assess the risk of Down Syndrome in the child.
The Double Marker test is a simple blood test with no need for fasting before the test. The blood sample can be taken by the phlebotomist at a pathology lab.
