OmniPod UST400, User Manual

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Understanding PDM and Pod Function 12
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12 Understanding PDM and Pod Function
Target BG
When calculating a correction bolus, the Bolus Calculator aims to bring your
blood glucose down to the Target BG.
Correct Above threshold
The Bolus Calculator only suggests a correction bolus if your blood glucose
reading is above your Correct Above setting. This feature can prevent corrections
to blood glucose values that are only slightly higher than your Target BG.
Insulin on board
Insulin on board (IOB) is the amount of insulin still active in your body from
preceding boluses. IOB from previous correction boluses is referred to as
correction IOB. IOB from previous meal boluses is referred to as meal IOB.
When calculating a new bolus, the Bolus Calculator may reduce the suggested
bolus based on the IOB.
The amount of time the insulin remains “on board” or “active” depends on your
duration of insulin action setting.
Note: The Bolus Calculator only subtracts IOB from a suggested bolus if your
current blood glucose is known. You should always test your blood glucose prior
to delivering a bolus.
Duration of insulin action
The Bolus Calculator uses your duration of insulin action setting to calculate the
insulin on board from prior boluses.
Minimum BG for Calcs
The Bolus Calculator does not suggest a bolus if your blood glucose reading is
below your Minimum BG for Calcs level.
Reverse Correction
If the Reverse Correction setting is turned on and your blood glucose level is
below your Target BG, the Bolus Calculator subtracts a correction amount from
the meal portion of the bolus. This feature allows a portion of an upcoming meal
to be allocated towards raising a low blood glucose level.
If the Reverse Correction setting is turned off, the Bolus Calculator suggests the
full meal bolus even if your blood glucose level is below your Target BG.