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
![[ PCOS Discussion Forums ]](../../images/pcos_at_obgyn.gif)