GDM

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GDM

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Dragonfly
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Topics: 27
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08/11/08 - 12:31 PM

1. after an abnormal 50g.1h. OGGT (screening) what is the next step? FBS or 100g.3h.OGGT?

2. is FBS a part of 100g.3h.OGGT? or they do this without fasting?

3. what is an abnormal FBS? in Kaplan it says 125 in one chapter and 95 in another!!

Thanks guys!

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nightflight1945
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08/11/08 - 03:58 PM

Yes , Kaplan is somehow complicated in GDM.

Please do not confuse GDM with DM itself,GDM is type A of DM in pregnancy and DM itself is type B to R.

Always use 50 gram GTT -1h for screening :
1- if it is more than 140 then the next step is 100 gr , 3hr OGTT
2-if it is >200 the patient would be diagnosed with GDM , BUT many authors still recommend using 3hr OGTT as the only means of diagnosis of GDM.SO there are two different opinion in this regard but the latter is more popular.

Now in 3hr OGTT the normal values are :FBS<96 , 1hr<180 , 2hr<155 , 3Hr<140.(In some texts you may see some small different values like 185 instead of 180)
1-If two is abnormal : Diagnosis is GDM (type A DM in pregnancy)
2-If one is abnormal : Repeat the test in one month

BUT DO NOT CONFUSE THIS WITH DM ITSELF.
A PREGNANT PERSON WITH FBS>=126 (2 ocassions) is Diagnosed with DM (type B to R) and not GDM.
DM and GDM are two different entities.

REGARDS

Dragonfly
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08/12/08 - 03:49 AM

thanks for clarification.
I don't understand though. how are DM& GDM different apart from the fact that DM existed before 20th week but GDM is new onset? is there a diff in FBS values?

thanks

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