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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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How To Test Gestational Diabetes?

What is the incidence of total diabetes ( pre existing diabetes before pregnancy) & gestational diabetes (diabetes developed during pregnancy) in your practice? When is it usually detected? (week of pregnancy eg 12, 24…) how is it usually detected?How often do the patients test every day post detection of diabetes?
Mon, 9 May 2016
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General & Family Physician,  's  Response
Hello dear
Understand your concern.
Incidence of total diabetes is around 7-10 %.
Incidence of Gestational Diabetes is 10-15 % of all pregnancy.
Generally it should be detected around 24th to 28th week of pregnancy by
1. Glucose screening test:
By 50 gm nonfasting glucose challenge test- if it is > 130 mg/dl, you shold go for
2. Oral glucose tolerance test after 100 gm glucose loading
Evaluation of GTT:

Time of sample Cut off value
Fasting blood glucose level: >=95 mg/dl
1 hour glucose level: >=180 mg/dl
1 hour glucose level:>=155mg/dl
1 hour glucose level:>=140 mg/dl

If any of the two value above the cut off, Gestational DM is confirmed.
It is managed by the drug, insulin, exercise and diet.
Goal is to keep the FBS below 100 mg/dl
Again oral GTT should be done 6 week after delivery of baby.

Hope this may help you
Best regards
Dr. Sagar
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How To Test Gestational Diabetes?

Hello dear Understand your concern. Incidence of total diabetes is around 7-10 %. Incidence of Gestational Diabetes is 10-15 % of all pregnancy. Generally it should be detected around 24th to 28th week of pregnancy by 1. Glucose screening test: By 50 gm nonfasting glucose challenge test- if it is 130 mg/dl, you shold go for 2. Oral glucose tolerance test after 100 gm glucose loading Evaluation of GTT: Time of sample Cut off value Fasting blood glucose level: =95 mg/dl 1 hour glucose level: =180 mg/dl 1 hour glucose level: =155mg/dl 1 hour glucose level: =140 mg/dl If any of the two value above the cut off, Gestational DM is confirmed. It is managed by the drug, insulin, exercise and diet. Goal is to keep the FBS below 100 mg/dl Again oral GTT should be done 6 week after delivery of baby. Hope this may help you Best regards Dr. Sagar