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2 Bumps

This is probably a silly question for most of you, but this is my first baby. I got my blood taken for screenings of mental disabilities in the first and second trimester. Why don't they do them in the 3rd trimester?

Answer Question

Asked by kb81888 at 2:46 PM on Jun. 21, 2011 in Pregnancy

Level 7 (153 Credits)
Answers (10)
  • Because by then the readings are inaccurate. The blood levels of hormones and substances are most accurate in the first and second trimesters and even then have a very, very high false positive rate.

    Answer by Ati_13 at 2:47 PM on Jun. 21, 2011

  • You have the option to abort in the first trimester. And maybe even into the second, I'm not sure.

    Answer by hootie826 at 2:50 PM on Jun. 21, 2011

  • maybe blood sugar levels.

    Answer by momindiana at 2:51 PM on Jun. 21, 2011

  • They already tested the baby for all they have the ability to test for through blood work . You could also have had an amnio which is always accurate for over 100 genetic abnormalities.

    Answer by ILovemyPaulie at 2:55 PM on Jun. 21, 2011

  • because once you have gotten to the third trimester it is too late to make a decision to terminate the pregnancy

    Answer by peanutsmommy1 at 2:59 PM on Jun. 21, 2011

  • well i don't know...

    Answer by littlekitty2002 at 3:31 PM on Jun. 21, 2011

  • yes, it is too late to make a "choice" if they wait until the third trimester. There was never a "choice" for me so I refused the testing all together.

    Answer by hollydaze1974 at 3:33 PM on Jun. 21, 2011

  • makes sense!

    Comment by kb81888 (original poster) at 3:37 PM on Jun. 21, 2011

  • agreed with PP.

    Answer by msmamakatie at 10:35 PM on Jun. 21, 2011

  • Because it might not be as accurate later in the pregnancy

    Answer by MooNFaeRie30 at 5:51 AM on Jun. 23, 2011

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