When should fetal biophysical testing be performed in women with gestational diabetes mellitus (GDM)?

Updated: Apr 29, 2020
  • Author: Thomas R Moore, MD; Chief Editor: George T Griffing, MD  more...
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Answer

Answer

Initiate testing early enough to avoid significant stillbirth but not so early that a high rate of false-positive test results is encountered. In patients with poor glycemic control, intrauterine growth restriction, or significant hypertension, begin formal biophysical testing as early as 28 weeks. In patients who are at lower risk, most centers begin formal fetal testing by 34 weeks. Fetal movement counting is performed in all pregnancies from 28 weeks onward.

There is no consensus regarding antenatal testing in patients with gestational diabetes that is well controlled with diet.


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