Diabetes screening

From: pauleun@MEM.po.com
Thu Aug 22 23:31:14 1996


>Is anyone using HG A1c for screening for diabetes instead of the usual
one >hour (50G) glucola and 100G GTT if the glucola is elevated. I can't
tell >you the number of women with elevated glucola's that come back from a
GTT >with hypoglycemic or very normal values. Couldn't you just draw a
HGA1c on >women at risk, or even everyone. If that's within the normal range,
then you >could be fairly reassured that the woman is not diabetic....

>Pat Sonnenstuhl, CNM,ARNP,RH

HbA1c seems to be always normal in gestational diabetic. I think it is a useful test to follow type I diabetic patients but not in gestational diabetic patients. I can think of two reasons why this may be the case. 1) gestational diabetes typically develops in the third trimester. Therefore, their blood sugars haven't been abnormal for a long time. 2) mean blood sugar levels tend to be lower in gestational diabetic patients as opposed to type I or type II.

Paul H. Eun, MD, FACOG Puyallup, WA





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