Roche Accu-Chek Aviva User's Guide download pdf (Page 102)

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Appendix B: Bolus Advice Calculations

The Mathematical Basis for Bolus Calculations

The following is a list of the most important formulas and the calculation principles on which bolus advice is

based. It is difficult to calculate accurately a bolus yourself using these formulas when the acting time and

offset time of recent meals and correction boluses are considered.

Carbohydrate Suggestion

This calculation is made when the blood glucose result falls below the hypo warning limit. It is based on

the other values defined for the current time block and the result is calculated as a carbohydrate intake

recommendation.

CarbohydratesInsulin

InsulinbG

from insulin sensitivity from carbohydrate ratioaccording to time block denition

Carbohydrates = (

Target Range Mean Value

– Current bG) ×

i NOTES:

• A minimum amount of 12g (or equivalent BE, KE, or CC units) is always given. If the calculated value

is below 12g, then 12g is used.

• The carbohydrate suggestion is displayed in the carb unit of measure you have selected (g, BE, KE, or

CC).

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Roche Accu-Chek Aviva User's Guide Page 102