Results of the glucose challenge test are given in milligrams per deciliter (mg/dL) or millimoles per liter (mmol/L).

  • A blood sugar level below 140 mg/dL (7.8 mmol/L) is considered normal.
  • A blood sugar level of 140 mg/dL (7.8 mmol/L) or higher might indicate gestational diabetes.

Some clinics or labs use a lower threshold of 130 mg/dL (7.2 mmol/L) when screening for gestational diabetes.

If the results of your glucose challenge test indicate the possibility of gestational diabetes, your health care provider will do another test — typically the glucose tolerance test — to determine the diagnosis.

Apr. 17, 2013