First trimester screening

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How you prepare

By Mayo Clinic staff

You don't need to do anything special to prepare for first trimester screening. You can eat and drink normally before both the blood test and the ultrasound exam.

What you can expect Risks
References
  1. Canick JA, et al. First trimester and integrated screening for Down syndrome and trisomy 18. http://www.uptodate.com/index. Accessed Aug. 27, 2012.
  2. Benacerraf BR. Sonographic findings associated with aneuploidy. http://www.uptodate.com/index. Accessed Aug. 27, 2012.
  3. Canick JA, et al. Second trimester maternal serum screening for Down syndrome. http://www.uptodate.com/index. Accessed Aug. 27, 2012.
  4. Routine tests in pregnancy. American College of Obstetricians and Gynecologists. http://www.acog.org/~/media/For%20Patients/faq133.pdf?dmc=1&ts=20120827T1517335564. Accessed Aug. 27, 2012.
  5. Messerlian GM, et al. Overview of prenatal screening and diagnosis of Down syndrome. http://www.uptodate.com/index. Accessed Aug. 27, 2012.
  6. Ostermaier KK. Management of Down syndrome. http://www.uptodate.com/index. Accessed Aug. 27, 2012.
  7. Harms RW (expert opinion). Mayo Clinic, Rochester, Minn. Sept. 11, 2012.
MY00126 Oct. 13, 2012

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