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Triple Screen vs Quad Screen

starlee_99starlee_99
in Pregnant after 35

So I had the triple screen at 12 wks and an ultra sound to measure spine etc.  My blood test results for this test came back normal with a 1:1300 chance that my baby could have downs.  Last week at 17 weeks I had the quad screen.  I got my results yesterday.  All of them came back normal except the downs syndrome.  This test showed that I have a  1:62 chance that my baby could have downs.  I am going to schedule the level 2 u/s to further check.  I was wondering what exactly is the difference between these 2 tests.  How can one tell me my odds are 1:1300 and then the other tell me my odds are 1:62? 

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Re: Triple Screen vs Quad Screen

  • amandaleigh1amandaleigh1 member

    As I understand it, when you combine the results from the triple and quad, it is called the "integrated" screen and it is said to be more predictive with a lower false positive rate. That said, it is still a screen, so in all likelihood all is well with your lo.

    There are lots of websites that describe this screen. This is one of them:

     https://www.cpmc.org/learning/documents/intscreen-ws.html


    IVF #1 ET 1 d3 embryo 10/30/11 BFP
    3 Embryos frozen (1 d5, 2 d6)

    DS born 07/29/12

    FET #1 ET 1 d5 embryo 02/10/15 BFN

    FET #2 1 d6 embryo didn't survive thaw, transferred last d6. CP :(

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