PCOS Messages for February, 2002: Re: Question on Glucose Tolerance Test

Re: Question on Glucose Tolerance Test

From: Belle (anonymous@obgyn.net)
Tue, 5 Feb 2002 19:59:43 -0600 (CST)

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Your glucose levels did go up. Glucose levels should peak between 30 and 60 minutes after ingestion of food. By the end of two hours, glucose levels should return back to normal.

There could be a number of reasons that your fasting level was at 89 and went down to 84 at 30 minutes. The most frequent cause of a higher fasting level is because the skin was not cleaned throughly enough or the client (patient) has had something to eat like a stick of gum (no joke, gum can raise your insulin levels!). There is also the possibility that the first blood sample was not handled correctly or that the tech touched the top of the vial or any other piece of equipment getting a small amount of sugar on it. I suspect that the mid-eighties are your normal fasting level. Regardless of the reason that the fasting draw was slightly higher, the difference is so slight, it would not cause me to worry.

The Glucose Tolerance Test (GTT) is difficult on many people. The symptoms you describe is why most doctors do not require the 5 hour test unless they suspect hypoglycemia is the problem. I usually recommend that anyone going to have a GTT needs to have something to eat soon after the test. Most of the time, the lab tech will tell you to get something to eat when you leave the lab.

Your endo sounds like she is up-to-date on PCOS research. :-)

At Mon, 4 Feb 2002, Sally wrote: >
>What does it mean during a fasting glucose test if the glucose levels do
>not go up? For example, when I had the test, the glucose levels started
>around 89 (fasting), then after 30 mins went down to 84, 1 hour went up
>to 100, then 2 hours went to 83. Several hours after got really bad
>headache and lethargy. Unfortunatley they didn't do insulin testing at
>the same time so don't know what that was doing. (if my endo ever
>decides to repeat this test I will ask her about this).
>
>Could this indicate a very strong insulin response - all glucose got
>taken up very rapidly and then hypoglycaemia? Or just a variation of
>normal. Fasting insulin level was normal.
>
>I was not diagnosed as insulin resistant, however my endo believes that
>all persons with PCOS have insulin resistance to some degree, hence she
>still prescribed metformin.
>
>--
>Sally
>

-- Hope this helps,

Belle

Next message: tera: "Re: Awaiting ovarian drilling"
Previous message: anonymous: "had some blood work done"
In reply to: Sally: "Question on Glucose Tolerance Test"
Next in thread: Jessica: "Re: Almost Diagnosed and confused!"

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