How to correct bg using insulin

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How to correct bg using insulin


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Old 07-06-2014, 16:59   #1
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Default How to correct bg using insulin

I have a question. I want to get started on insulin. I have novolog pen.

So lets say I consume 20 gm of carb at lunch.
How do I go about taking insulin so that post 90 min my bg is 80 - 90 range. The pre range meal is between 80 -90.

I know its difficult to answer as everyone id different but any insight how to go about it would be helpful. I want to get started with the minimum dose of 1 unit.

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Old 07-06-2014, 17:15   #2
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Difficult one as you say.

There are two issues to consider. First, how much will a known quantity of carbohydrate push you up? That's largely down to your weight but of course, the nature of the carbohydrate will cause an issue with timing. Pure glucose you'll see in minutes; whole grain cereal, takes a couple of hours.

And guess what? The other issue is identifying how much one unit of insulin will bring you down. That is very individual.

On the first point, according to Bernstein's book, Diabetes Solution - someone weighing 140 pounds will spike 5mg/dL on 1 gram of glucose. At 175 pounds, the spike drops to 4. But that's glucose - not general food.

I'd suggest that you explore some of the books on offer - like Think Like a Pancreas: A Practical Guide to Managing Diabetes with Insulin Marlowe Diabetes Library: Amazon.co.uk: Barry J. Goldstein, Gary Scheiner: Books

Some of our insulin users will be along with more information soon,

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Old 07-06-2014, 17:35   #3
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Fastest insulin cannot keep pace with carbohydrates in grains. 20 gm carbohydrate from non starchy vegetable will spike me around 120 mg/dl and 2 units of humalog is enough to cover that but if I consume 20 gm of carb from wheat, there will be a spike to 150 before insulin catches up. If I inject more than 2 units, the spike may not be as much but there is a risk of hypo.

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Old 07-06-2014, 17:41   #4
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Thanks for pitching in John and MNB.

My bgs spike abt 40 points with 10 gm carb. So roughly 4 points per gm of carb.

I am gluten free so I avoid grains.

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Old 07-06-2014, 17:52   #5
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Quote:
Originally Posted by Rahul_Boston View Post
Thanks for pitching in John and MNB.

My bgs spike abt 40 points with 10 gm carb. So roughly 4 points per gm of carb.

I am gluten free so I avoid grains.
Also my bgs peak between 60- 90 min.
I would like to try with 1 unit and see how much it decreases.

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Old 07-06-2014, 18:17   #6
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yep, given your weight, that spike seems about right.

Whilst I'd still recommend investing in a book like the one I mentioned, I think it's fair to say that your insulin reaction is something you need to find out the hard way, by experiment. (as you suspected).

One more thing though. Consider Bernstein's 'law of small numbers'. Read It Online! In other words, until you nail the relationship, keep those carbs down!

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Old 07-06-2014, 18:24   #7
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No responses yet from any T1s.

Looks like T2s are fast acting than T1s :-)

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Old 07-06-2014, 18:43   #8
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This is a very difficult one. As has been said not all carbs are equal as to timing or effect. For me commercial fruit juice is almost instant and high while something like a double cheese meat pizza is very slow and not as high but for longer.
You need to work out how each type affects you by quantity and the timing.
The next step is to figure out the effect of the fast acting insulin and it's timing as too high BG and damage while too low a hypo with risks and other damage especially to brain cells.
Once you have that you can start trying to control it and match the insulin to the carbs but the answers come from testing.
As a T2 you will probably have different results as you have your own insulin but are resistant.
My first two weeks were hell trying to figure this out without risk. I did a huge amount of reading and eventually concluded that the best for me was to restrict carbs as much as possible and try to avoid bolus injections.
This is my experience and my thoughts.You need to do research as in the previous posts and consult with your medical people to help you.
Best of luck.

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Old 07-06-2014, 20:01   #9
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My Husband is type 1 and on a Medtronic Minimed pump. My Calculations show that Ronnie needs 1 unit of insulin for 8 grams of carb. 8 grams of carb drives his bg up 25 mg/dl. Low carb, high fat works best for him. Less insulin to juggle.

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Old 07-07-2014, 01:03   #10
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Quote:
Originally Posted by John.in.France View Post
Difficult one as you say.

There are two issues to consider. First, how much will a known quantity of carbohydrate push you up? That's largely down to your weight but of course, the nature of the carbohydrate will cause an issue with timing. Pure glucose you'll see in minutes; whole grain cereal, takes a couple of hours.

And guess what? The other issue is identifying how much one unit of insulin will bring you down. That is very individual.

On the first point, according to Bernstein's book, Diabetes Solution - someone weighing 140 pounds will spike 5mg/dL on 1 gram of glucose. At 175 pounds, the spike drops to 4. But that's glucose - not general food.

I'd suggest that you explore some of the books on offer - like Think Like a Pancreas: A Practical Guide to Managing Diabetes with Insulin Marlowe Diabetes Library: Amazon.co.uk: Barry J. Goldstein, Gary Scheiner: Books

Some of our insulin users will be along with more information soon,
Hate to argue with Dr. B ... but ... weight is not always the main determinant. It's metabolism. Weight gain or loss may affect metabolism -- or not. My own weight has yo-yoed quite a bit, for example, but my insulin:carb ratio has not changed.

Think Like a Pancreas, linked above, and Using Insulin, by John Walsh, offer some great dose determination methods. Whatever method you choose, however, it comes down to test-test-test.

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