This weight law spread sheet (Microsoft Excel) eliminates the difficulty of putting the weight law concept to work. Some people find the computations and formulas difficult.
The weight law is initially determined with two titration successes at different body weights, done some months apart, and resulting in a non trivial change in a dosing setup. Once an old and a new body weight and an old and a new total daily basal dose are known, the spread sheet will compute the weight law constant, an insulin setup parameter, for that individual. Then, the next time weight again changes, the spread sheet will use that parameter to calculate a dose multiplier that will allow you to update basal doses, BG correction coefficients, and meal dosing coefficients. The dose multiplier the spread sheet generates is applied to basal doses. Meal K and DPU (carbs or glucose grams per unit of dose, and correction BG drop per unit of dose) both get updated by dividing the former values by that same parameter. The result is that the weeks of titration and test supplies expense to get a new dosing setup at the newest weight are eliminated or at least reduced.
I have noted that the weight law parameter continues to work over quite a large weight change. For example, for the author it predicted new dosing correctly with 1% agreement with the titrated new doses after a 50% weight increase. In another instance an original 1.297 multiplier became 1.31 after a 25% weight increase.
The spread sheet is offered as is at no charge and no guarantee regarding it is being made. Use it at your own risk and, should you do so. You agree to hold the TBINET organization and DSM list owners harmless.
If you have questions about the concept or the spread sheet, contact Ron Sebol at the DSM-L list. To post a message click here.
Download: WeightLaw.xls (MicroSoft Excel)
Download: Weight Law.qpw (Quatro
This file was developed with Corel Quatro Pro version 12 with Servicepack-1.
Download: Weight Law.ods (Open Office)