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October 11, 2021

Diagnosis and Symptoms, Gestational Diabetes

Question from Angeles City, Phillippines:

I had my 75 gram OGTT on September 23. My results are: Fasting Blood Sugar 5.32 mmol/L, 4.13 to 6.60 mmol/L; (96 mg/dl); (75 to 120 mg/dL). Glucose two hours post meal: 6.75 mmol/L (123 mg/dl). Can you please advise if I have gestational diabetes mellitus based on my results? Your answers would really be a big help.


From: Marissa Town, BSN, RN, CDCES

According to the American Diabetes Association, Gestational Diabetes is diagnosed based on this criteria: A 75 gram Oral Glucose Tolerance Test (OGTT), with plasma glucose measurements when the patient is fasting and at one and two hours, at 24 to 28 weeks gestation in women not previously diagnosed with diabetes. The OGTT should be performed after an overnight fasting of at least eight hours. The diagnosis of GDM is made when any of the following plasma glucose values are met or exceeded:
1. Fasting: 92 mg/dl (5.1 mmol/L)
2. One hour: 180 mg/dl (10.0 mmol/L)
3. Two hours: 153 mg/dl (8.5 mmol/L)

So, based on these criteria, it sounds likely you may have gestational diabetes. You may benefit by maintaining a healthy diet and exercising, but you should follow up with your health care team.