Abbott FreeStyle InsuLinx Owner's Booklet page 38

10 Tap done to save the settings. To learn how to use the calculator, refer to the Use Your
Insulin Calculator with Advanced Option section.
Notes about the Advanced Option:
•
In the Advanced Option, the calculator estimates the amount of rapid-acting insulin still in the
body and how much longer it may be active. The active insulin estimate is calculated from the
set insulin duration and the time and amount of rapid acting insulin doses logged within the
insulin duration.
•
Both meal and correction doses are included in the active insulin tracking.
•
Insulin doses calculated 0-2 hours after a previously logged dose will only include a meal
dose. A correction dose will not be included even if the blood glucose is outside the target.
During this time period, the previous dose has not reached peak action and additional
correction doses, referred to as 'insulin stacking' , may result in hypoglycaemia. During this
time period, active insulin will not be subtracted from any meal or carbohydrate dose.
•
Insulin doses calculated between 2 hours and the set insulin duration will have active insulin
subtracted from the suggested dose (for example if insulin duration is set at 5 hours, active
insulin will be subtracted from doses calculated between 2-5 hours).
•
All previously injected insulin should be logged to ensure accurate active insulin tracking
and calculations.
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The graph below demonstrates how the insulin calculator estimates the amount of active insulin as
a function of logged insulin dose and insulin duration over time. It shows the relationship between
the symbol and amount of active insulin.
Active insulin curvilinear model
100
90
80
70
60
50
40
30
20
10
0
10 20 30
% insulin duration
Adapted from Mudaliar et al. Diabetes Care, Volume 22(9), Sept 1999, pp 1501-1506
40 50 60 70 80 90 100
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