Tdd

jared · #1 (**permalink**) 08-15-2005, 12:11 PM

HELP

can someone pls provide me with the formula to determine what my TDD should be. i did a search and no luck.

HeatherP · #2 (**permalink**) 08-15-2005, 12:23 PM

Hi Jared, hope this helps you:

insulin calculators

JasonSmithMT · #3 (**permalink**) 08-15-2005, 01:19 PM

Jared, your TDD (Total Daily Dose) is the sum of the units of all the insulin you take in a day, short and long acting.

For example if you take 5 units of rapid acting insulin at breakfast, 7 units of rapid acting at lunch, 8 units of rapid acting insulin at dinner, and 20 units of Lantus at bedtime then your TDD would be 40.

Jason

mark-TN · #4 (**permalink**) 08-15-2005, 02:54 PM

Jared -

If I understand your question you are asking if there is a formula that will give you what your TDD should be? TDD will be different for everyone and there many factors that will determine what it will be; diet, exercise, weight, insulin sensitivity, insulin regiment you are on, etc. So there is really not a formula for it. Although I'm sure there is a way to roughly estimate it; I doubt there is an actual formula that would fit everyone given the many determining factors. If you are asking how you figure what your TDD is; Jason answered that very nicely.

Mark

duck · #5 (**permalink**) 08-15-2005, 05:03 PM

http://www.cozmore.com/Library/uploa...ermine_p34.pdf

You'll need Adobe Acrobat to read this file from Deltec.

And I COMPLETELY agree with what Mark said...I try not to get too caught up in my TDD, since it varies depending on what I eat (or do not eat), how much I am active, etc.

JasonSmithMT · #6 (**permalink**) 08-15-2005, 05:34 PM

Mark - I guess you can read it that way. If that is what the question is then the answer to what a TDD should be is always: whatever it takes to reach your glycemic goals. That is however much insulin it takes to get your glucose levels in the range you and your healthcare provider have set for yourself. That is when all is said and done the only thing that really matters.

Mark of course is right on the money, there are too many factors to say something along the lines of a person who weights X will require Y units of insulin per day as it apply to everyone.

Starting insulin doses are usually based on body weight. For insulinopenic type 1 diabetics often a conservative dose of somewhere around 0.5 units of U/100 insulin per kg per day is used in many protocols. Of course physicians will factor in all the individual factors of the patient when starting insulin. For example, a previously undiagnosed type 1 diabetic in the hospital with DKA will require much more than they will need afterwards.

To get to what you are probably asking, most literature quotes that most type 1 diabetics will eventually require around 0.4 to 1.0 units per kg per day. Diabetics in honeymoon phase of course will require much less and pubertal children may require up to 1.5 units per kg per day.

Jason