high fasting but low postprandial - help!

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New Member

Date Joined Jul 2006
Total Posts : 2
   Posted 7/25/2006 7:23 AM (GMT -7)   
Hi i just had my blood level fastin count come back at 141 i have never had high blood sugar, so i figure high coloresteral has a big factor, but the crazy thing is 2hrs after i eat my blood sugar drops way down to between 42-68. has anyone else experienced it. anyone know what causes it? thanks Bonita confused

Regular Member

Date Joined Jan 2006
Total Posts : 101
   Posted 7/25/2006 5:56 PM (GMT -7)   

Hi there,

               a friend of mine wanted to check for diabetes,so he went ahead with a test called the OGTT (Oral Glucose Tolerance Test),where after drawing blood for the fasting morning sample,75 gms of glucose mixed in 300 ml of water is administered and either half hourly or hourly blood samples are tested for glucose values.

His fasting was 103mgs,first hour reading was 140,second hour reading fell to 64 and then they did what is called an extended OGTT, where a third hour sample is tested.It was 44mgs and he started feeling dizzy.

This scenario as the Endocrinologist diagnosed is called "REACTIVE HYPOGLYCEMIA" where inappropriately high insulin is released from the pancreatic beta cells to a given glucose load,causing dramatic falls in blood glucose levels.

This kind of picture is like the final burst of flame from a flickering candle before it extinguishes.The beta cells are fast getting exhausted and Insulinopenia(low insulin levels) ensues and the person becomes a frank diabetic!

You did not mention whether your fasting sugar was tested in a lab or with a glucometer,because glucometers are not meant for diagnosis(there is a thread in this forum on glucometer accuracy).

My suggestion to you would be to go in for a OGTT,first thing in the morning in a truly fasting state,that is you must have a normal dinner without any sweets in it, at least 10 hours before the first sample is drawn.Have your dinner at 8 p.m and see that your blood is drawn at 8 a.m the next day morning!

Then we'll know what is happening in  your system.My best wishes stay with you!

New Member

Date Joined Jul 2006
Total Posts : 2
   Posted 7/26/2006 1:30 PM (GMT -7)   
the 141 was done by my physian, and then i decided to check with the monitor i have, and after i had eaten aprox. 2 hr had pasted, i had a sugar level of 68 and when i went to bed that evening at 11:30 i had a 121. this is erradic i think and at uva this is university of virginia hospital. it was normal again 109. i cant under stand why my physian was getting 141 and uva was getting 121 on a fastin, then after that my monitor reading started dropping at 48 one time. Bonita

this was a dr. sheduled fastin on the 141 and the 121
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