User Manual

128 Chapter 12
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Active insulin only reduces the correction portion of the estimate, not the food portion.
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If the active insulin is more than the correction estimate, the correction portion of the estimate will be changed to zero (0).
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If the current BG is lower than target, the correction portion of the estimate will reduce the total estimate.
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If a Dual Wave bolus is less than the estimate due to the max bolus limit or user change, the square (sq) portion is reduced first.
Bolus Wizard examples: (settings:) Carb ratio: 30 grams/unit
Insulin
sensitivity: 40 mg/dL/unit
Target BG: 120 mg/dL
#1: No previous bolus activity for at least 10 hours. User inputs 60 grams of carbs and does not enter BG.
#2: No previous bolus activity for at least 10 hours. User inputs 60 grams of carbs and a BG of 200.
#3: No previous bolus activity for at least 10 hours. User inputs 60 grams of carbs and a BG of 80.
60g
30g/u
(food estimate)
= 2 units
estimate = 2 units
60g
30g/u
(food estimate)
= 2 + 2
+
200mg/dL - 120mg/dL
40mg/dL/u
(correction)
= 2 units = 2 units
estimate = 4 units
= 4 units
60g
30g/u
(food estimate)
+
80mg/dL - 120mg/dL
40mg/dL/u
(correction)
= 2 units =
-40mg
40mg
= -1 unit
= 2 + (-1)
estimate = 1 unit
= 1 unit