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Re: GTT results

From: Belle (anonymous@obgyn.net)
Thu, 23 Mar 2000 21:31:32 -0600 (CST)


Insulin levels should always be between undetectable usually in a fasting state) and 5 - 25 uU/ml (35 to 145 pmol/L in Europe)

Fasting levels for Glucose is less than 120 mg/dl (< 6.7 mmol/L). Normally the fasting level is around 80.

Between 30 min to 1 hour after the glucose solution (sugar drink), levels should peak at 160 - 180 mg/dl (8.9 - 10.0 mmol/L)

Glucose should return to fasting levels in 2 to 3 hours.

More important than the numbers though is the correlation between the insulin and glucose levels.

At Thu, 23 Mar 2000, A wrote: >
>Are there any 'norms' for results on this test, or, what results would prove one
>to have IR?
>
>Belle wrote:
>
>> The fasting time seems fine (usually people fast from midnight the night
>> before their test), but it sounds like she only took a fasting level. In
>> order to see how your insulin and glucose work in your body, you should
>> have a test that lasts hours. The tech takes a fasting level of insulin
>> and glucose then you drink a sugar drink. In an hour (or 1/2 hour
>> depending on the office) you will have another insulin level and glucose
>> level drawn, then in another hour, same thing. Most drs that I am aware
>> of only use a two hour test. Some drs still use the LONG, draining,
>> five hour test. This does not sound like what you had. This is called
>> a GTT w/insulin (glucose tolerance test with insulin levels)
>>
>> --
>> Hope this helps,
>>
>> Belle
>>

--
Hope this helps,

Belle




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