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self administered 2 hour GTT results

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self administered 2 hour GTT results

Posted by Dan [2966.8736] on May 05, 2010 at 22:18:52:

i tried to do a self GTT with about 100 grams of carbs.

i drank two soft drinks, (25 g carb each) and ate 4 slices of pizza (each about 20 g carb).

before eating blood sugar level was 93.
after 30 minutes blood sugar level was 159
after 60 minutes blood sugar level was 138
after 90 minutes blood sugar level was 155
after 120 minutes blood sugar level was 171

what does all this mean? is this clearly diabetic or well on its way to being diabetic?


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Re: self administered 2 hour GTT results

Posted by Ron [5412.8172] on May 05, 2010 at 22:31:35:

In Reply to: self administered 2 hour GTT results posted by Dan [2966.8736] on May 05, 2010 at 22:18:52:

Hi Dan,

Maybe all you need is a 20 minute walk or a bike ride after eating to drop those numbers?


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Re: self administered 2 hour GTT results

Posted by dan [2966.8736] on May 05, 2010 at 22:33:28:

In Reply to: Re: self administered 2 hour GTT results posted by Ron [5412.8172] on May 05, 2010 at 22:31:35:

hi ron, i love your posts. you may be right. thanks ron. i appreciate it.


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Re: self administered 2 hour GTT results--proper protocol-Archive

Posted by Walt Stoll [93.8110] on May 06, 2010 at 07:18:33:

In Reply to: self administered 2 hour GTT results posted by Dan [2966.8736] on May 05, 2010 at 22:18:52:

Dan,

Suspicious. I am having the same trouble as you finding the protocol for the 5 hour GTT. Thanks for bringing it to my attention. Bill is right now looking at what happened.

In the meantime: a proper 5 hour GTT begins with eating at least 400 grams of carbohydrate daily for 3 days, then nothing but water after midnight, check a fasting blood sugar (bs) then eat or drink 100 grams of carbohydrate, check bs in 30 minutes, 1 hour, 2 hours 3 hours, 4 and 5 hours--even 6 would be interesting.

Walt


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Re: self administered 2 hour GTT results--proper protocol-Archive

Posted by Dan [2966.8736] on May 06, 2010 at 07:35:07:

In Reply to: Re: self administered 2 hour GTT results--proper protocol-Archive posted by Walt Stoll [93.8110] on May 06, 2010 at 07:18:33:

thanks walt. based on my results, do you glean anything?

i will see if i can get a GTT done at the doctors office but i suspect they do not use the 400g carbs for 3 days i think they make you drink a glucose drink.


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Re: self administered 2 hour GTT results--proper protocol-Archive

Posted by Bill [8783.8797] on May 06, 2010 at 08:14:14:

In Reply to: Re: self administered 2 hour GTT results--proper protocol-Archive posted by Walt Stoll [93.8110] on May 06, 2010 at 07:18:33:

Found this. I looked through a lot of the Diabetic archives and couldn't find detailed protocol on the 5 hour Glucose Tolerance Test. It might be time to post it again.


posted by Walt Stoll on August 19, 2002 at 09:32:53:

ALL physicians are taught that the most accurate test yet available for the earliest indication of diabetes coming is:
At least 400 grams of carbohydrate a day for 3 days and then a 12 hour fast before starting the 5 hour GTT. OK to eat anything else in addition to this carbohydrate load. Pig Out :o).

Any modifications from this protocol are due to the individual doctor practicing unscientific medicine.

Walt



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Re: self administered 2 hour GTT results--proper protocol-Archive

Posted by Walt Stoll [93.8110] on May 06, 2010 at 08:55:09:

In Reply to: Re: self administered 2 hour GTT results--proper protocol-Archive posted by Dan [2966.8736] on May 06, 2010 at 07:35:07:

Dan,

Ther is NO reason why you cannot do this at home. If the doc is too ignorant to do it right, you will be the best person to do it.

Walt


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Re: self administered 2 hour GTT results--proper protocol-Archive

Posted by js [13601.2863] on May 06, 2010 at 08:58:04:

In Reply to: Re: self administered 2 hour GTT results--proper protocol-Archive posted by Bill [8783.8797] on May 06, 2010 at 08:14:14:

More...

--

Re: Diabetes In Young People (Best Test.) Archive in diabetes.

posted by Walt Stoll on February 15, 2001 at 08:44:14:

in reply to: Diabetes In Young People posted by Whitney on February 13, 2001 at 00:23:04:

Hi, Whitney.

The most accurate test for diabetes seems to be beyond the intellectual capacity of most physicians although they are all tsught this in medical school:

You need 3 days preparation during which you eat at least 400 grams (1200 calories) of carbohydrates a day. This is called carbhydrate "loading" and will catch even diabetes that may yet be years off.

THEN you eat nothing from midnight the night before the test--drink all the water you want. The day of the test they will take a blood test and ask you for a urine specimen. THEN, they will give you a Glucola (or equivalent) drink and repeat the blood and urine specimens 30 minutes, 60 minutes, 2, 3, 4, & 5 hours after the drink.

During this time it is important to drink enough water to ensure that you will be able to empty your bladder for each time.

95% of adult diabetics have a normal fasting blood sugar and tests taken at random mean nothing unless the people drawing the blood know when and what you ate before the blood was drawn. Even then they will have missed an important variable (what is your renal threshold for spillage of sugar).

Let us know what you learn.

Walt

--

To do this yourself, you'd use home glucose readings.

What would you use for a glucose drink? urine test strip?



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Re: self administered 2 hour GTT results--PROPER PROTOCOL FOR 5 HR GTT-Archive

Posted by Walt Stoll [93.8110] on May 06, 2010 at 09:11:54:

In Reply to: Re: self administered 2 hour GTT results--proper protocol-Archive posted by js [13601.2863] on May 06, 2010 at 08:58:04:

Thanks, js.

To answer your last questions: 100 grams of carbohydrate for the test is 400 calories of carbohydrate. This would be 2 large bananas, or 3 large apples, or 3-8 0z glasses of orange juice, etc.

Test strips will not be adequate. One would have to have a home testing glucometer with strips.

Hope this helps.

Walt


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Re: self administered 2 hour GTT results--proper protocol-Archive

Posted by Dan [7550.8799] on May 06, 2010 at 09:54:56:

In Reply to: Re: self administered 2 hour GTT results--proper protocol-Archive posted by Walt Stoll [93.8110] on May 06, 2010 at 08:55:09:

got it. thanks walt. so lets say it shows i am diabetic. or at least on my way to being diabetic.

what should i do? same instructions apply right? 3LS?

im wondering if a higher fat and lower carb diet is the way for me to go.


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Re: self administered 2 hour GTT results--proper protocol-Archive

Posted by Walt Stoll [93.8110] on May 06, 2010 at 10:41:31:

In Reply to: Re: self administered 2 hour GTT results--proper protocol-Archive posted by Dan [7550.8799] on May 06, 2010 at 09:54:56:

Thanks, Dan.

This is case of "don't get the cart before the horse"!

One step at a time, please.

Walt


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Re: self administered 2 hour GTT results--proper protocol-Archive

Posted by Dan [7550.8799] on May 06, 2010 at 11:03:20:

In Reply to: Re: self administered 2 hour GTT results--proper protocol-Archive posted by Walt Stoll [93.8110] on May 06, 2010 at 10:41:31:

thanks walt.

so to do this at home, is this the protocol:

1) eat 400 grams of carbohydrates per day for 3 days (1200 calories of carbs). ok to eat anything in addition.
2) fast for 12 hours after carb loading for 3 days.
3) start the 5 hour GTT. test my sugar every hour for 5 hours. record the results.

additional question: how do i know that i am getting 400 grams of carbs? that sounds like several bowls of sugar cereals, sugar soft drinks, pizza, and a plate of pasta. is that correct? if i do this, will this damage my body in any way or is only three days not so bad?

thanks so much!!


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Re: self administered 2 hour GTT results--PROPER PROTOCOL FOR 5 HR GTT-Archive

Posted by js [13601.2863] on May 06, 2010 at 11:48:21:

In Reply to: Re: self administered 2 hour GTT results--PROPER PROTOCOL FOR 5 HR GTT-Archive posted by Walt Stoll [93.8110] on May 06, 2010 at 09:11:54:

Walt: Yes. I did this 5hr GTT test, as outlined by you, and so did my husband, three years ago. We have been thinking of doing it again.

We used a typical home glucose meter with lancets and test strips.

We used a prepackaged glucose challenge. At the time, I believed the 100g challenge should be as close to pure glucose as possible, so used a commercial one, to remove all doubt such as fibers, possible allergens, etc. So I guess this is not so critical?

What does the home urine test measure, and how do you do it?

Thanks.


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Re: self administered 2 hour GTT results

Posted by samm [1003.2765] on May 06, 2010 at 11:56:02:

In Reply to: self administered 2 hour GTT results posted by Dan [2966.8736] on May 05, 2010 at 22:18:52:

when you mix fat and protein in with your carb, you are slowing digestion (and also blunting blood sugar spikes). If you want to test your carb/glucose response you should try a pure carb meal-NOT pizza.
Remember, home glucose meters have 20% variability in results, as well.


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Re: self administered 2 hour GTT results--proper protocol-Archive -- Addendum.

Posted by Walt Stoll [93.8110] on May 06, 2010 at 12:39:28:

In Reply to: Re: self administered 2 hour GTT results--proper protocol-Archive posted by Dan [7550.8799] on May 06, 2010 at 11:03:20:

Dan,

One gram of carbohydrate has 4 calories in it. SO, 400 grams equals 1600 calories.

That means that for the morning test dose, you want 400 calories of easily absorbed carbohydrate. Also, be sure to test your fasting sugar before eating the test meal. Then check the blood sugar ar 30 minutes, 1 hour post meal, & every hour post meal until test is done.

To get the very most out of the test you also need to get a urine specimen every time you check the blood--although that is not very important unless you turn out to be a frank diabetic. The urine tests CAN be done with test strips.

Three days of a crummy diet cannot hurt you even if you are a serious diabetic. So far, your testing shown nothing more than possible "chemical diabetes".

Walt


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Re: self administered 2 hour GTT results--proper protocol-Archive -- Addendum.

Posted by Walt Stoll [93.8110] on May 06, 2010 at 12:39:43:

In Reply to: Re: self administered 2 hour GTT results--proper protocol-Archive posted by Dan [7550.8799] on May 06, 2010 at 11:03:20:

Dan,

One gram of carbohydrate has 4 calories in it. SO, 400 grams equals 1600 calories.

That means that for the morning test dose, you want 400 calories of easily absorbed carbohydrate. Also, be sure to test your fasting sugar before eating the test meal. Then check the blood sugar ar 30 minutes, 1 hour post meal, & every hour post meal until test is done.

To get the very most out of the test you also need to get a urine specimen every time you check the blood--although that is not very important unless you turn out to be a frank diabetic. The urine tests CAN be done with test strips.

Three days of a crummy diet cannot hurt you even if you are a serious diabetic. So far, your testing shown nothing more than possible "chemical diabetes".

Walt


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Re: self administered 2 hour GTT results--PROPER PROTOCOL FOR 5 HR GTT-Archive

Posted by Walt Stoll [93.8110] on May 06, 2010 at 12:53:38:

In Reply to: Re: self administered 2 hour GTT results--PROPER PROTOCOL FOR 5 HR GTT-Archive posted by js [13601.2863] on May 06, 2010 at 11:48:21:

Thanks, js.

I agree that to be exactly perfect a commercial test dose of the 100 grams of glucose is best. However it is a ways down the list though. Another factor is that this test dose is predicated upon an average sized human adult (150#). SO, if the subject weighs only 100# the dose should be reduced at that proportion. If the person weighs 250# they should increase the dose proportionally.

In my opinion, these other factors are so far down the list that they are not very important.

The urine test srips are just dip stix that measure urine pH, protein, sugar, etc. They only give an indication of 1-4+ just like pool test strips do. Unless the diabetes is moderately severe the urine tests are of no help in diagnosis.

Hope this helps.

Walt


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Re: self administered 2 hour GTT results--proper protocol-Archive -- Addendum.

Posted by dan [7550.8799] on May 06, 2010 at 14:33:04:

In Reply to: Re: self administered 2 hour GTT results--proper protocol-Archive -- Addendum. posted by Walt Stoll [93.8110] on May 06, 2010 at 12:39:43:

walt, im sorry. im lost here.
i understood that you carb load 400g of carbs for 3 days, fast 12 hours and then test.

are you saying that you carb load at 400g for 3 days, fast for 12 hours, and do a 400gram meal after your fast and then start testing 30 minutes after your test meal?
like this-
day 1: 400g carbs
day2: 400g carbs
day3: 400g carbs
fast 12 hours
fasting sugar test
day 4: 400g carbs for breakfast and start testing after 30 min


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Re: self administered 2 hour GTT results--proper protocol-Archive -- Addendum.

Posted by Walt Stoll [93.8110] on May 06, 2010 at 14:41:52:

In Reply to: Re: self administered 2 hour GTT results--proper protocol-Archive -- Addendum. posted by dan [7550.8799] on May 06, 2010 at 14:33:04:

Dan,

ALL KORRECT except that the morning test meal on the test day is 100 grams of carbohydrate (400 calories).

Walt


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Re: self administered 2 hour GTT results--proper protocol-Archive -- Addendum.

Posted by Dan [7550.8799] on May 06, 2010 at 14:42:43:

In Reply to: Re: self administered 2 hour GTT results--proper protocol-Archive -- Addendum. posted by Walt Stoll [93.8110] on May 06, 2010 at 14:41:52:

youre a big help walt. thank you kindly.

best to you.

dan


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Re: self administered 2 hour GTT results

Posted by Ron [5412.8172] on May 08, 2010 at 04:33:50:

In Reply to: Re: self administered 2 hour GTT results posted by dan [2966.8736] on May 05, 2010 at 22:33:28:

Hi Dan,

;-) Finally!!! A fan!!

Thanks


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