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help with my glucose tollerance test results please

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bnstmf1984

Newbie
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Hi i have been having bad reactive hypoglycemia since i was teenager, however i am finding that since the pregnancy of my first child in 2007 i started to get higher bloodsugars. I had a GTT done in 2010 which is shown below. I have been monitoring my reactions to foods recently because i am having some symptoms. These include, blurred vision and extreme tierdness following meals, this is ALWAYS when my bloodsugar is at its highest peak. I do still get the reactive hypos with the symptoms but they are not as bad or as frequent anymore. Now looking at my results below i am sure it seems that my insulin and c peptide levels are way to high. I do have PCOS and was put on metformin to conceive which i did. I then stopped the metformin when i found out i was pregnant and i started getting these symptoms but on a much milder scale. However if i am to eat any carbohydrates without protein, even complex ones i am getting these symptoms. If anyone can shed some light on the below results it would be greatly apreciated.

Glucose tollerance test taken 2010 October
Time Glucose Insulin C-peptide
(3-17Mu/l ) (260-630pmol/l)
0 4.3 2.2 323
30 5.4 14.9
60 10 37.2 2088
90 8.9 30.8
120 7.3 30.6 2109
150 7.2
180 5.5 24.2 2177

Here are some at home readings i have taken myself.

Fasting- 5.5mmol
SMALL 30 GRAM BOWL OF PORRIDGE
30 min postprandial- 6.7mmol
1 hour postprandial - 9.2
1hr30 postprandial- 7.8
2 hour pp- 4.2


Fasting- 4.8mmol
BOWL OF CRUNCHY NUT CORNFLAKES
30 min post prandial - 8.7mmol
1 hour post prandial - 11.4
1hr30 postprandial - 7.3
2 hour postprandial - 5.8

Thankyou
 
Hi! We of course can't diagnose you, but your OGTT suggests you were pre-diabetic, and your current tests, bearing in mind meters we use can have big errors and the way we use them can too, suggest also that you are somewhere on the diabetic scale. I would go back to the doctor for some proper definitive tests.
 
I think you have to go back and ask about it, it's not something that is easily interpreted by non experts.
I've looked and can't find appropriate levels of insulin/c peptide during the challenge. I think possibly though maybe wrongly, the range given was for fasting amounts.
Insulin and C peptide will vary according to the glucose level.
If for example you had very high insulin/c peptide and a very low figure at some time during the test that would have shown hypoglycaemia produced by an inappropriate amount of insulin. If you had a very low amount of insulin/c peptide and a high glucose level that would have shown insulin deficiency.http://www.countypathology.co.uk/Tests/ ... nsulin.php

Your glucose figures for the OGTT seem to have been within normal ranges (assuming that they were lab test results not from a finger prick)
http://www.diagnosticsample.com/point-o ... =2&lang=en
http://www.labtestsonline.org.au/unders ... e/tab/test
http://en.wikipedia.org/wiki/Glucose_to ... TT_results
(I checked three sources to try to be sure as some of the figures have altered over the years)

Fasting below 6.1 (6.1-6.9mmol/dl) would mean impaired fasting glucose.
During the test Normal values are:
60min below 10.3 (this is the lowest figure which I found from the first link: official figure is 11.1 mmol/l.
90 min below 9.0
120 min below 7.8 (7,8- 11.0 = impaired fasting glucose; above 11.1mmol/l diabetes.)

As the test was 2 years ago you certainly should go and tell the doc about your concerns .
 
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