Insulet Corporation 019 Manual De Usuario
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Suggested Bolus Calculator Examples and
Guidelines
A suggested bolus is equal to the sum of a correction bolus and
meal bolus, then adjusted for insulin on board, if applicable.
Examples of each of these elements are shown below.
meal bolus, then adjusted for insulin on board, if applicable.
Examples of each of these elements are shown below.
Example of correction bolus
Target BG: 100 mg/dL
Current BG: 200 mg/dL
Correction factor (CF): 50
200 mg/dL (current) – 100 mg/dL (target) = 100 mg/dL
Correction factor (CF): 50
200 mg/dL (current) – 100 mg/dL (target) = 100 mg/dL
100 mg/dL ÷ 50 (CF) = 2 units correction bolus
If the reverse correction feature is turned On and if your current
BG is below your target BG, the suggested bolus calculator sub-
tracts a correction amount from the meal bolus.
BG is below your target BG, the suggested bolus calculator sub-
tracts a correction amount from the meal bolus.
Example of reverse correction bolus:
Target BG: 100 mg/dL
Current BG: 75 mg/dL
Correction factor (CF): 50
75 mg/dL (current) – 100 mg/dL (target) = –25 mg/dL
Correction factor (CF): 50
75 mg/dL (current) – 100 mg/dL (target) = –25 mg/dL
–25 mg/dL ÷ 50 CF = –0.5 units reverse correction bolus
(reduces meal bolus)
(reduces meal bolus)
Meal bolus calculation
Carbs entered ÷ insulin-to-carb (IC) ratio
Example of meal bolus
Carbs entered: 45 grams of carb
Insulin-to-carb ratio: 15
45 carbs ÷ 15 IC ratio = 3 units meal bolus
Insulin-to-carb ratio: 15
45 carbs ÷ 15 IC ratio = 3 units meal bolus
Insulin-on-board (IOB) calculation
(Duration of insulin action – time since your previous bolus) ÷
(duration of insulin action) (previous bolus)
IOB from a previous correction bolus is called “correction IOB,”
and IOB from a previous meal bolus is called “meal IOB.”
(duration of insulin action) (previous bolus)
IOB from a previous correction bolus is called “correction IOB,”
and IOB from a previous meal bolus is called “meal IOB.”
Example of correction insulin-on-board (IOB)
Duration of insulin action: 3 hours
Time since previous correction bolus: 1 hour
Previous correction bolus: 3 units
3 hours – 1 hour = 2 hours
3 hours – 1 hour = 2 hours
2 hours ÷ 3 hours = 2/3
2/3 3 units = 2 units correction IOB
2/3 3 units = 2 units correction IOB
In other words, one hour after your previous correction bolus,
you have received only 1 unit of insulin from it; 2 units of insulin
are still working to correct your BG. This feature prevents deliver-
ing too much insulin when correcting a high BG.
you have received only 1 unit of insulin from it; 2 units of insulin
are still working to correct your BG. This feature prevents deliver-
ing too much insulin when correcting a high BG.