Has anyone had to do a 2 hour glucose test for gest diabetes? - Mothering Forums

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#1 of 5 Old 02-01-2012, 02:02 PM - Thread Starter
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The doctor we are using says this is becoming standard now.  Anyone else had to do it or heard of it?  They do it instead of the one hour test.

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#2 of 5 Old 02-04-2012, 12:52 PM
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I did, but it wasn't in the US. The UK standard is to use the 2 hour, 75g OGTT, fasting. This is the test done in the US outside of pregnancy.  It's kind of a pain because it's an overnight fast. Blood is drawn fasting prior to the glucola, then again at 1 and 2 hours. It means more time in the lab, too (I had mine done in a hospital, and I was allowed to leave the lab area but not the building. Your lab may vary!)


I think the reason the 1hr became so popular is that it is not a fasting test and that everyone can simply be given a 50g glucola and do it as desired. The 75g and 100g fasting tests are more of a pain to administer. The problem is that the 1hr has some downsides: Put the pass level too high, and you miss people who would fail a fasting test. Put it too low and the false positive rate skyrockets. Some people who get between 130 and 140 will fail a 3hr, but a lot won't. So you need to decide which way to swing.


With my 2nd (in the US, born in September) I did the 1hr test. I was also given a baseline at 8 weeks. (Some providers push this on all obese patients; in my case, there was actually a chance I had masked T2, so I was okay with it.)





In 2011, the American Diabetes Association adopted guidelines that recommend changes in the way women are tested for gestational diabetes. Instead of the GCT described above, a 2-hour OGTT, using a 75-gram glucose drink, is performed. If one or more of her glucose levels at fasting, 1 hour, or 2 hours are above a certain level, then she is diagnosed as having gestational diabetes.


That was a followup to a 2010 proposal. So I may have just missed the change!

DD 01/2007, DS 09/2011

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#3 of 5 Old 02-04-2012, 02:11 PM
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For my last pregnancy it was the 2-hour & I was told it's the new standard (Canada). Quite frankly I'd rather do the 2 hour once than the 1 hour, fail it & have to do the 3 hour.

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#4 of 5 Old 02-07-2012, 07:57 AM
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I did with my pg in 2010. I was very sick from it and would rather just go on the diet than repeat that experience. It was recommended to me even though I'd passed the 1 hr because babe was measuring several weeks ahead of schedule. I didn't have GD, he was just big.


This pg, I had and passed the 1 hr. different practice of docs. Baby is measuring normally.

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#5 of 5 Old 02-13-2012, 12:30 PM
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Ugh! I HATE them! I have had to do the second one TWICE! That would be the 4hour one after testing either positive or too-close on the first test ... After all that my seond test always comes out normal/negative. Go figure. Plus that GluCola takes so bad! Yucky.

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