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Patient Instructions for Post Prandial Blood Sugar

A

adams

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Hi anyone,

I'm just new to this forum. But I would like to ask you a question regarding what I have on mind. If the question is not applicable to this thread please do let me know.

My question of concern is that; how should we get prepared for post postprandial blood sugar test on the day of testing.

Following is the instructions that I have been given to follow;
Test Instructions
Eat a meal that contains carbohydrates.
Eat the entire meal within 15 minutes
You should rest during the 2 hours between the meal or drink and the blood collection.
Do not smoke, eat, drink, or exercise during the 2 hours. These activities cause the blood sugar levels to be falsely low or falsely high.
Return to the lab two hours after completion of your meal. Your blood will be drawn again for the 2 hour postprandial blood sugar (glucose).

Why is that they are asking to eat a meal that contains carbohydrates when I have high blood sugar?
Why should I finish eating the entire meal withing 15 minutes.

I hope I'm not asking too much questions. But I hope I'm not out of limit.

Any help on this would be kindly appreciated.

Thanks in advance.
 
I can understand the reasons - eating after the meal and before the test would raise blood sugar further, over exercise could cause a liver dump and raise it, normal exercise would lower it. What I don't understand is why all the fuss over one one post meal test? The results won't tell you too much - results would vary according to the AMOUNT of carbs, the TYPE of carbs, (LOW GI or high), how they're cooked (e.g, boiled or cooked with fat). Specific tests are normally fasting, glucose tolerance or HbA1c (looks at 3 month average) This sounds a bit like a Glucose tolerance test of sorts. Maybe others have experience of this?
Malc
 
It makes sense to specify a time limit for the meal of 15 minutes.

If you were to eat the same meal over an hour rather than within 15 minutes -one would expect your blood glucose levels to be significantly different.

What baffles me, is that they do not specify the carbohydrate content of the meal. Most meals will contain some carbohydrate, even a few lettuce leaves contain some carbohydrate.

It may be worthwile asking:

1. Roughly how much carbohydrate to consume at the meal?
2. What type of carbohydrate to include?

I doubt the meal they want you to have for the test is likely to be good for your sugar levels here, but a one off like this shouldn't do too much harm.
 
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