User's Guide

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2. BG Bolus Calculator (Smart Bolus)
This type of BOLUS will calculate an estimate of insulin required for a correction bolus and/
or food bolus and adjusts the suggested dose to compensate for residual Active Insulin
from previous Bolus delivery.
1. From BOLUS select BG BOLUS
CALCULATOR with button.
2. Within the BOLUS CALULATOR menu, adjust
the parameters displayed to match the settings
for this BOLUS.
BG the current BG level.
CARBO the amount of carbohydrate in the meal.
IDEAL the default target BG
CIR the carbohydrate to insulin ratio
CF the correction factor
to move the menu. Use and to make
adjustments. Press .
3. The BOLUS review displays the suggested Bolus
dose.
BOLUS
BG BOLUS CALCULATOR
BG BOLUS CAL.
BG
CARBO
IDEAL
CIR
CF
220
mg/dL
80
g
100
mg/dL
25
50
BG BOLUS CAL.
SUGGESTED
BOLUS
G. 2.40 C.3.20 A.0.20
5.40 u
BG BOLUS
CALCULATOR
BOLUS
SETTING
SUB MENU
MAIN MENU
BOLUS
BOLUS
4. Start the BOLUS with button.
Within the BOLUS review display the following values are displayed
G Is the Bolus dose to adjust Glucose
= (BG-IDEAL)/CF
C Is the Bolus dose to cover Carbohydrate in the meal
= CARBO/CIR
A Is the residual Active insulin calculated from previous boluses.
It is called "Active Insulin" or "Bolus on Board" or "Insulin on Board".
The suggested bolus is calculated by:
BOLUS = G + C – A
BOLUS = CORRECTION DOSE + MEAL DOSE – ACTIVE INSULIN
Example of Smart Bolus calculation.
Patient (A) has Ideal BG of 100 mg/dl, actual BG test prior to meal is 220 mg/dl. The
meal/food contains 80 grams of carbohydrate. At the time of the calculation the set CIR
is 1:25 and CF is 1:50. Patient (A) had 0.2u of active insulin at the time of the bolus.
G = (220–100)/50 = 2.40
C = 80/25 = 3.20
A = 0.20
Suggested bolus = 2.40 + 3.20 – 0.20 = 5.40u
Notice
If the actual BG is lower than the IDEAL BG the correction dose will be a reduction
of Insulin required for the meal. Sometimes called a Negative Correction.
DELIVER
BOLUS?
:NO- OK :YES