Accu-Chek Aviva, Training Handbook

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101
Appendix
Appendix C
The Mathematical Basis for Bolus Calculations
Below is a list of the most important formulas and principles that Bolus Advice
uses to calculate your bolus. It is difficult to accurately calculate a bolus your-
self using these formulas (remembering to include the Acting Time and Offset
Time of your most recent boluses). This is why Bolus Advice is so useful. It will
save you a lot of time and avoids the risk of mistakes in your calculations.
Carbohydrates
This calculation is required when the bG result falls below the Hypo Warning
Limit. It is based on the other values defined for the current Time Block, and
the result recommends how much carbohydrate you should consume.
The words written in orange in the formula refer to the setting that you find
on the meter screen.
Carbohydrates = ( Target Range mean value – Current bG) × × Carbohydrates
Insulin
Insulin D bG
from Insulin Sensitivity from Carb Ratio according to block definition
Meal bolus
Meal bolus = Carbohydrate intake ×
Insulin
Carbohydrates
from Carb Ratio