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Gestational Diabetes...failed the three hour Glucose Tolerance Test

by (30)
Updated about 3 hours ago
Created April 21, 2011 at 4:38 AM

I have a question and Im hoping someone can shed some light on this for me. My appt with a Dietician is not for a while and I would like some answers now. With my first pregnancy, I failed the one hour glucose test so they referred me to the 3 hour test. They told me to eat a diet filled with carbs and I did that and passed the three hour test. Now with my third pregnanct, I failed the one hour test. I forgot how long they told me I should not eat for and I ate at noon and my test was at three. I also ate something really small, I think a small croissant with a piece of turkey. So my first question is did my glucose level go up because I took the test three hours after eating something really small?? My other question is that they didnt instruct me to carb load for the three hour test this time (different Dr) so I actually ate very little the day before bc I was so stressed. I ended up with a normal fasting score of 89 but failed all the other scores afterwards. Now I am diagnosed with GD bc my scores were so high. Any input will be appreciated.

D63f6523e79d218ba7b076cc10d89453
30 · April 26, 2011 at 2:14 AM

So far my readings are pretty good..knock on wood..Hope it stays like this bc they informed us that the more you get close to delivery, the more insulin your body has to make.

D63f6523e79d218ba7b076cc10d89453
30 · April 26, 2011 at 2:13 AM

Well...I have an update. I was at the Dietician today and I asked about the carb loading diet and she said they dont recommend that anymore. ALso, I got my meter and started testing today. They asked me to test 7 times a day. So far, my numbers are within range thank GOD!! SO, we will see how the rest of the week goes.

72dc57ac38e39129ad9a0bfb891d59ca
55 · April 23, 2011 at 5:44 AM

My fiance is pregnant so I researched to make sure she would ace the glucose tolerance test. I found this blog post which explains why low carb eaters can actually fail the glucose tolerance test even if they're not diabetic. Hope everything works out for you.

72dc57ac38e39129ad9a0bfb891d59ca
55 · April 23, 2011 at 5:42 AM

http://high-fat-nutrition.blogspot.com/search?q=insulin+resistant+muscle+return

D63f6523e79d218ba7b076cc10d89453
30 · April 22, 2011 at 4:38 PM

I read about magnesium and chromium...

13c5a9f1678d75b93f269cdcf69f14d5
2319 · April 22, 2011 at 2:27 PM

To be clear, PP = post prandial

13c5a9f1678d75b93f269cdcf69f14d5
2319 · April 22, 2011 at 2:26 PM

PP is the important number, but the low FBG is a good sign

13c5a9f1678d75b93f269cdcf69f14d5
2319 · April 22, 2011 at 2:25 PM

In general, if you low carb, then you would add 10 points to adjust the score. See bloodsugar101 for details on conducting your own at home OGTT.

13c5a9f1678d75b93f269cdcf69f14d5
2319 · April 22, 2011 at 2:24 PM

Tis is just one test. Your meter will give you more info

D63f6523e79d218ba7b076cc10d89453
30 · April 22, 2011 at 2:59 AM

Maybe I should do that once I have the glucose meter then I will be able to check whats going on a daily basis...

17c4ac2c3f75c9e37d196ea878ea94b5
130 · April 22, 2011 at 12:47 AM

Agree about carb loading if u normally eat low carb... If you ate a low carb diet over weeks, it can in theory cause a false high bg score due to downregulation of insulin receptors. however, fasting for a day wouldnt cause this effect. Only prolonged low carb/fasting.

D63f6523e79d218ba7b076cc10d89453
30 · April 21, 2011 at 11:56 PM

I guess my main question is this...which I cant ask the Dietician till Monday. If you eat very little and then take these tests, will that make your BG go high? Bc with the one hour, I only ate something really small all day and my appt was at 3. Then for the other test, I had just two bowls of chicken soup all day. I know thats not good but I was so nervous about failing the first test.

D63f6523e79d218ba7b076cc10d89453
30 · April 21, 2011 at 11:50 PM

I did come across this website...this where I read that fasting for 12-14 hours can make the OGTT give false positive. Also, it talked about the carb loading. As I said the first time I was pregnant, I passed the three hour test when I carb loaded, this time I didnt carb load and failed. I know each pregnancy is different but I think its something to consider.

D63f6523e79d218ba7b076cc10d89453
30 · April 21, 2011 at 10:56 PM

I called the nurse today and asked her and she said fasting that long shouldnt affect the test, neither would not eating carbs beforehand.

Ed71ab1c75c6a9bd217a599db0a3e117
25467 · April 21, 2011 at 7:22 PM

you need to be absolutely tested.....and if you plan on having another baby in 2 yrs no doubt. Recently a study was just published that shows high autism risks for a second baby born to a mother after a low post natal D level was found. I think it was in the Journal of Pediatrics within the last six months if you want to google it.

30fd031cc07a0d7dee7f1cad57f48a0c
453 · April 21, 2011 at 6:01 PM

Dr k. You sir are a dick. Im not " mixing things up badly" Im assuming she does not have GD but is failing the OGTT secondary to a vlc paleo lifestyle. The question I asked Robb, and his reply, warrants merit here as it builds a case for using alternative more reliable testing. I've bitten on your inflammatory remark once. It wont happen again. Quit trolling these boards. If you have advice to offer do it. If you are just going to make negative comments, go visit 4chan. Trust me when I tell you Im not the only person who holds this opinion of you.

D63f6523e79d218ba7b076cc10d89453
30 · April 21, 2011 at 5:18 PM

Dr K...do you suggest I take vitamin D vitamins?

D63f6523e79d218ba7b076cc10d89453
30 · April 21, 2011 at 5:17 PM

I just want to cry...I cant believe its happening to me. They said today that if I didnt get it under control with diet then they put you in insulin :(

Ed71ab1c75c6a9bd217a599db0a3e117
25467 · April 21, 2011 at 5:14 PM

gestational diabetes is not what robb was talking about. Your mixing things up badly. OGTT is a bad test. But having gestational diabetes is a very bad harbinger.

Ed71ab1c75c6a9bd217a599db0a3e117
25467 · April 21, 2011 at 5:13 PM

gestational diabetes is a warning sign. It means mom is leptin resistant and very likely has a very low vit D level She is also at high risk of developing type two diabetes in the future as is her offspring. The child is likely also leptin resistant if mom was at pregnancy. Not good at all.

D63f6523e79d218ba7b076cc10d89453
30 · April 21, 2011 at 3:47 PM

Thats what Im going to do. For my peace of mind, I am meeting with the Dietician on Monday and will be getting the glucose meter. My fasting # was 89 so if I had a problem wouldnt that number be much higher? What stinks is that the first meeting with the Dietician is a class setting and I would much prefer to be one on one bc I have a ton of questions.

1ec4e7ca085b7f8d5821529653e1e35a
5516 · April 21, 2011 at 12:07 PM

I was going to point to the same link, and I'm glad you got it up first!

1da74185531d6d4c7182fb9ee417f97f
10919 · April 21, 2011 at 7:22 AM

Carbohydrates can kill, Dr. Hu's podcast recently had a great talk about Gestational diabetes. I recommend you listen to it. http://www.carbohydratescankill.com/1835/44-dr-mary-vernon-on-gestational-diabetes-its-causes-prevention-treatments and http://www.carbohydratescankill.com/1724/gestational-nutrition-adele-hite-mat-ep-41

1da74185531d6d4c7182fb9ee417f97f
10919 · April 21, 2011 at 7:15 AM

I swear, that test made no sense to me. When I got pregnant I avoided sugar and grains besides some rice and potatoes like a hawk but at the time I didn't know about Paleo yet. So then they give me a bottle of pure sugar water, something I wouldn't DREAM of taking in and expect that to give realistic results about how my blood sugar behaves on a day to day basis? So freaking weird. I wouldn't have followed that stupid GD diet even if they had found my blood sugar to be high. Just looking at it, it was ludicrous the amount the fructose it allowed.

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72dc57ac38e39129ad9a0bfb891d59ca
3
55 · April 22, 2011 at 2:34 AM

I'm assuming you've been doing the low carb thing for a while. If so...

When you go low carb, your body will adapt. It assumes that there is no glucose around and since your brain needs glucose, it makes your muscles insulin resistant. It's a protective mechanism your body triggers when in a glucose scarce environment. Since your muscles are refusing glucose, it frees up glucose for the brain.

All you have to do is load up on carbohydrates for a few days and your insulin sensitivity will return.

...

Oh yeah, I forgot to mention...

The reason you failed the test, assuming your not diabetic, is because since your muscles are refusing the glucose, your blood sugar shoots up.

D63f6523e79d218ba7b076cc10d89453
30 · April 22, 2011 at 2:59 AM

Maybe I should do that once I have the glucose meter then I will be able to check whats going on a daily basis...

72dc57ac38e39129ad9a0bfb891d59ca
55 · April 23, 2011 at 5:42 AM

http://high-fat-nutrition.blogspot.com/search?q=insulin+resistant+muscle+return

72dc57ac38e39129ad9a0bfb891d59ca
55 · April 23, 2011 at 5:44 AM

My fiance is pregnant so I researched to make sure she would ace the glucose tolerance test. I found this blog post which explains why low carb eaters can actually fail the glucose tolerance test even if they're not diabetic. Hope everything works out for you.

D63f6523e79d218ba7b076cc10d89453
30 · April 26, 2011 at 2:13 AM

Well...I have an update. I was at the Dietician today and I asked about the carb loading diet and she said they dont recommend that anymore. ALso, I got my meter and started testing today. They asked me to test 7 times a day. So far, my numbers are within range thank GOD!! SO, we will see how the rest of the week goes.

30fd031cc07a0d7dee7f1cad57f48a0c
6
453 · April 21, 2011 at 6:00 AM

The test is archaic ....assuming you are paleo and have been for a while it would behoove you to get an a1c test to help build a case and show that you do not have GD. We had the same issues, I actually wrote into Robb Wolf and asked him. Here is his reply: http://robbwolf.com/2010/09/06/gestational-diabetes-what-constitutes-low-blood-sugar/

Ed71ab1c75c6a9bd217a599db0a3e117
25467 · April 21, 2011 at 5:14 PM

gestational diabetes is not what robb was talking about. Your mixing things up badly. OGTT is a bad test. But having gestational diabetes is a very bad harbinger.

1ec4e7ca085b7f8d5821529653e1e35a
5516 · April 21, 2011 at 12:07 PM

I was going to point to the same link, and I'm glad you got it up first!

30fd031cc07a0d7dee7f1cad57f48a0c
453 · April 21, 2011 at 6:01 PM

Dr k. You sir are a dick. Im not " mixing things up badly" Im assuming she does not have GD but is failing the OGTT secondary to a vlc paleo lifestyle. The question I asked Robb, and his reply, warrants merit here as it builds a case for using alternative more reliable testing. I've bitten on your inflammatory remark once. It wont happen again. Quit trolling these boards. If you have advice to offer do it. If you are just going to make negative comments, go visit 4chan. Trust me when I tell you Im not the only person who holds this opinion of you.

510bdda8988ed0d4b0ec0b738b4edb73
2
20908 · February 06, 2012 at 2:35 PM

Looks like someone else already linked to Robb Wolf's article about it, but I'll do it again just to emphasize it: http://www.robbwolf.com/2010/09/06/gestational-diabetes-what-constitutes-low-blood-sugar/

These tests are actually dangerous to the mother and fetus if the mother is already fat-adapted. Don't follow stupid convention and take some test that you don't need to. My wife and I dropped our Doc and switched to Midwives when they tried to play the "you don't love your baby" card when we refused the test last year. The test contains no useful information, so the results don't matter. Also, don't try to ramp up your carbs just to pass a test. That's also not good for you.

949d4d02ea7d1abd714cc3347c2c6854
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1021 · April 21, 2011 at 2:58 PM

This woman writes a blog about her Paleo pregnancy, and she did some sort of alternative GD test that didn't involve large carbohydrate intake:

http://paleocrossfitpregnancy.wordpress.com/2011/04/08/23-weeks-and-testing-for-gestational-diabetes/

Check out her site - you might get some good ideas. Good luck!

A727956fa3f943057c4edb08ad9e864e
2
4163 · April 21, 2011 at 10:30 AM

Start religiously monitoring your own post-prandial glucose (1 and 2hrs after a meal).

Keep a record for 2-3 weeks and then show to your doctor, if it's all good they should revoke the diagnosis of GDM.

Take some magnesium too.

D63f6523e79d218ba7b076cc10d89453
30 · April 21, 2011 at 3:47 PM

Thats what Im going to do. For my peace of mind, I am meeting with the Dietician on Monday and will be getting the glucose meter. My fasting # was 89 so if I had a problem wouldnt that number be much higher? What stinks is that the first meeting with the Dietician is a class setting and I would much prefer to be one on one bc I have a ton of questions.

13c5a9f1678d75b93f269cdcf69f14d5
2319 · April 22, 2011 at 2:26 PM

PP is the important number, but the low FBG is a good sign

13c5a9f1678d75b93f269cdcf69f14d5
2319 · April 22, 2011 at 2:27 PM

To be clear, PP = post prandial

D63f6523e79d218ba7b076cc10d89453
30 · April 22, 2011 at 4:38 PM

I read about magnesium and chromium...

7401be7f1df3f5c72fe441236eb3e48b
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0 · February 06, 2012 at 8:54 AM

This blog is great source of information which is very useful for me. Thank you very much.

BEST INFORMATION ABOUT GLUCOSE TOLERANCE.

72dc57ac38e39129ad9a0bfb891d59ca
0
55 · April 22, 2011 at 2:39 AM

Oh yeah, I forgot to mention...

The reason you failed the test, assuming your not diabetic, is because since your muscles are refusing the glucose, your blood sugar shoots up.

6b72eeb3f0c98b487f712efcb5092c90
0
293 · April 21, 2011 at 11:44 PM

As a childbirth educator, I've found this site to provide the best info on how to deal with testing and gestational diabetes: http://www.plus-size-pregnancy.org/gd/gd_index.html. HTH.

D63f6523e79d218ba7b076cc10d89453
30 · April 21, 2011 at 11:50 PM

I did come across this website...this where I read that fasting for 12-14 hours can make the OGTT give false positive. Also, it talked about the carb loading. As I said the first time I was pregnant, I passed the three hour test when I carb loaded, this time I didnt carb load and failed. I know each pregnancy is different but I think its something to consider.

13c5a9f1678d75b93f269cdcf69f14d5
2319 · April 22, 2011 at 2:24 PM

Tis is just one test. Your meter will give you more info

D63f6523e79d218ba7b076cc10d89453
30 · April 21, 2011 at 11:56 PM

I guess my main question is this...which I cant ask the Dietician till Monday. If you eat very little and then take these tests, will that make your BG go high? Bc with the one hour, I only ate something really small all day and my appt was at 3. Then for the other test, I had just two bowls of chicken soup all day. I know thats not good but I was so nervous about failing the first test.

D63f6523e79d218ba7b076cc10d89453
30 · April 26, 2011 at 2:14 AM

So far my readings are pretty good..knock on wood..Hope it stays like this bc they informed us that the more you get close to delivery, the more insulin your body has to make.

100fd85230060e754fc13394eee6d6f1
0
18671 · April 21, 2011 at 2:50 PM

What is your normal carb intake? If it is usually low,you have to carb load for 3 days before the test.

13c5a9f1678d75b93f269cdcf69f14d5
2319 · April 22, 2011 at 2:25 PM

In general, if you low carb, then you would add 10 points to adjust the score. See bloodsugar101 for details on conducting your own at home OGTT.

17c4ac2c3f75c9e37d196ea878ea94b5
130 · April 22, 2011 at 12:47 AM

Agree about carb loading if u normally eat low carb... If you ate a low carb diet over weeks, it can in theory cause a false high bg score due to downregulation of insulin receptors. however, fasting for a day wouldnt cause this effect. Only prolonged low carb/fasting.

D63f6523e79d218ba7b076cc10d89453
30 · April 21, 2011 at 10:56 PM

I called the nurse today and asked her and she said fasting that long shouldnt affect the test, neither would not eating carbs beforehand.

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