Calculation

Activate

When you live with type 1, type 2 or LADA diabetes and use short acting insulin, you might find the mySugr Bolus Calculator helpful. To get started, open a new entry screen in mySugr Logbook and tap on the calculator symbol (just above the insulin fields). The first time you use the Bolus Calculator, we’ll ask you a handful of questions about your personalized settings. IMPORTANT: These settings determine how your insulin dose is calculated, and as you can imagine, it’s important to get them right. Please do not choose your settings without consulting your doctor or diabetes coach. Note that mySugr Bolus Calculator may only be used with the insulins listed in the settings and should especially not be used with either combination or long acting insulin. mySugr Bolus Calculator will ask you to review these settings every three months. You can also setup, enable and disable the Bolus Calculator in the "Settings" - "Therapy Settings" screen in the side menu.

Calculate

To calculate an insulin dose, enter your current blood glucose value and / or carbs and then press the calculator symbol. NOTE: The bolus calculation cannot be done when:

you are in a hypo (blood glucose value is below your defined target range)

your blood glucose is above 500 mg/dL or 27.7 mmol/L

the time of the log entry is not within the last 15 minutes. Ideally, you should calculate immediately after measuring your blood glucose and before eating

The Bolus Calculator window will open and show the result. Typically, the calculation result is an insulin dose, and the window is colored turquoise. However, the Bolus Calculator may suggest carbohydrates! This is because you have enough insulin on board from a previous insulin dose that a hypo (low blood sugar) is likely to occur without additional carbs. In that case, the result will be colored olive.

Confirm

If you agree with the suggested result, press the confirm button. The calculated values will automatically be saved in mySugr Logbook and the Bolus Calculator window will close. IMPORTANT: The Bolus Calculator makes insulin dose suggestions based on the information you enter. If the information you enter is incorrect or incomplete, the resulting insulin dose suggestion will not be accurate! Additionally, the calculation does not consider influences like stress, activity, illness, or other factors which may affect your blood glucose.

IOB (Insulin on Board)

The Bolus Calculator also continually calculates your IOB based on the last insulin doses you logged and your duration of insulin action setting. The IOB value will be shown with each calculation as part of the calculation formula. If there is no insulin on board, the Bolus Calculator will show a pop-up message asking you to confirm that you haven't taken any insulin recently. If you remember a bolus you took earlier (within your duration of insulin action time) but forgot to log, you should select "Cancel" on the pop-up message. Make a new entry with the details of that previous bolus (remember to adjust the time as needed in that entry) so that the Bolus Calculator will factor that IOB into the result. IMPORTANT: Only confirm that you have no IOB when you are sure that you did not inject insulin within the active insulin duration.

Save

By saving the log entry, the confirmed insulin dose (food and correction) or carb suggestion will be saved into the corresponding fields. Note: Neither result sum of the bolus / carb correction nor the IOB will be saved in the log entry.