Double Marker Test is a part of comprehensive screening called the first trimester screening . Your doctor might offer you a screening test to take a look at the condition of your baby . And also how is he or she is doing inside . Well this thing do excite you right but one more thing is that the screenings can also tell you about baby’s sex also .
These all questions has one answer which is Double Marker Test . This done by taking blood samples of mother who is expecting baby . This test give results about markers of certain chromosomal abnormalities and whole things will get crystal clear .
This blog will include more information about what is Double Marker Test , what is the cost , result outcomes and many more useful things to consider .
What is Double Marker Test
Double marker test is screening which is done to find out any issues related to chromosomal issues . This test becomes more important when couples have family history of certain conditions related to this .
This test is also known as also known as maternal serum screening , it is a type of predictive test different from other blood tests which are mostly definitive test . Maternal serum screening is important when you have certain health conditions .
Maternal serum screening test is used for the screening of blood levels . Blood level screening for free beta-human chorionic gonadotrophin (beta-hCG) and pregnancy-associated plasma protein A (PAPP-A) . During pregnancy there are normally two pairs of XX and XY chromosomes in female and male fetuses.
But other than these two chromosomes there might be a trisomy .
Now what is trisomy ? So, trisomy is a type of different condition in which a new chromosome is developed . And new one make pair with the present two . This condition is called trisomy chromosomes . This trysomy is of two types the first one in which a extra duplicate of chromosome 21 . And the other type is trisomy 18 and 13 in which chromosome 13 and chromosome 18 are developed in addition with the present chromosomes .
Women who get these type of trisomy abnormalility will have a higher level , or a lower level of hCG and PAPP-A . But this is not only the thing which produce result .
For proper outcome NT Scan is also done which is a ultrasound test and used for the examination of baby’s neck tissue .
This test also tells about whether the unborn baby is at risk for any mental disorder and whether your baby is at risk of down syndrome .
At what time Double Marker Test is done
There is not a fixed or specific time at which Double marker or Triple Marker Tests are done . But you doctor will recommend it to you take it around 12 to 14 weeks of pregnancy . The timing is very less around 2-3 weeks so do not avoid doing it especially if you have family background of certain health conditions . People normally avoids this test or delay which causes a delay in catching problems which your baby might have .
Why to do this test or screening
This is mainly done when you have family background which has certain health related condition . Another thing that is considered is that if your age is above 35 years . You might be more prone to certain chromosomal issues . Although this test is not mandatory for all . This test will tell you whether you have a risk of trisomy of not and this might not be able to detect abnormalities of baby.
What is the cost of Double Marker Test
Double Marker Test cost vary city by city because of availability of test , quality and other factors like density of test . And this type of test is only available in selected cities .
The common price of this test is around 2000 to 3000 Indian National Rupees . And it might differ from cities to cities to region to region .
Normal range of result
25700-288000 mIU/ml is the average or normal value of hCG in pregnant women . And the normal value of PAPP – A is 1 for the Double Marker Test . These ranges are considered ok for all age group women .
There is precautions needed for this test . However your doctor might be interested in knowing about your prior medications . No preparation is needed as it a normal blood and NT scan .
Read alsothings to do when bored