Accu-Chek Aviva, Training Handbook

Page: 102 / 105

102
Currently Allowed bG Value
The currently allowed bG Value considers all blood sugar excursions, that
have already been treated by a meal- and/or correction- bolus. For all bG
test results below the currently allowed bG value no correction will be
recommended. The currently allowed bG value is calculated as follows:
Currently allowed = Target Range mean value + Meal rise +
blood glucose range covered by
correction bolus
currently acting correction boluses according to block definition
∑
When no Meal Rise or correction bolus Acting Time is in effect, the value
for these in the formula is 0.
Correction Bolus
Generally, a correction bolus is only calculated if your current bG value is
above the hypo bG warning limit and outside of the Target Range. Addi-
tionally, it must be above the currently allowed bG value. Only correction
boluses greater than 0 will trigger an Acting Time.
Correction bolus = (current bG – currently allowed bG) ×
Insulin
D
bG
from Insulin Sensitivity
The size of the correction bolus depends on the following:
· If your bG is higher than the currently allowed bG, then:
Correction bolus = (current bG – currently allowed bG value) × Insulin
Sensitivity
· If the current bG is higher than the Hypo Warning Limit, and the current
bG is lower than Target Range lower limit, then the correction bolus that
is subtracted from the meal bolus is:
Correction bolus = (current bG – Target Range average value) × Insulin
Sensitivity