Tools & Calculators

Estimated A1C

A graph of A1C over 90 days

The A1C blood test is one standard for checking how well you are managing your diabetes. A result below 7 per cent is the goal, but it can be hard to achieve. With an estimated A1C you can start to see how your efforts are paying off.

Don’t be alarmed if the numbers seem high or too giddy with a lower number within the first few days or weeks. The blood test is based on a two- to three-month average of sugar in your blood, so your results will be most accurate once you’ve been using D Sharp for a little while.

How we do it

We prefer the D Sharp method, which is based on the trapezoidal rule. This rule approximates the region under the graph of all logged blood glucose and then adjusts for the difference in capillary blood and average plasma glucose. You may also see the application of this rule credited as the Tai Method.

We’ve also provided the American Diabetes Association Guidelines (ADAG) method, the Diabetes Control and Complication Trial method (DCCT) and the Nathan Formula. Your healthcare provider may prefer one of these other popular methods.

Explanation of graph

This graph shows you BGs as points over 90 days. The green band indicates the target range of 4 to 7 mmols. The green line represents the moving average for this user.

The graph visualizes D Sharp’s method of the trapezoidal rule and indicates that this user has maintained a healthy estimated A1C despite having BGs that fall above and below target.


A graph of A1C over 90 days

SMS Reminders

SMS reminders are sent to your smartphone or feature phone if more than four waking hours have passed since your last entry. A busy life means it’s easy to forget about recording your diabetes. These little reminders are a friendly way to help you stay on track.

This feature can be disabled if your data plan does not cover unlimited texts.


Personalized Dashboard

Dashboard

A Personalized Dashboard for at-a-glance entries and trends in the last 48 hours is a your diabetes homepage.

There will be days when you want to see detailed reports and charts of your diabetes. Maybe you’re looking for trends in BGs after exercise or suspect you are missing a dose of medication and want to find a new routine. On most days, you’ll probably want a quick check to see if you’re on track. Each entry will start with your dashboard, where you can quickly scan the numbers to look for changes.

Your dashboard will look similar to this one. It just depends on which of the following you are recording:

  • Daily blood glucose average
  • BG graph for last 48 hours
  • Number of high, low and in-range BGs
  • Total insulin used
  • Time since last BG check
  • Average BG
  • Active insulin
  • Total carbs
  • Last blood pressure reading and time taken
  • Last dose of each medication and time taken


Insulin Calculator

Dashboard

The Insulin Calculator uses your type of insulin, weight, insulin sensitivity, carb-to-insulin ratio and active insulin to calculate your bolus delivery.

This feature will help you with the sometimes complicated math of figuring out your bolus. Unless you use a pump with a bolus wizard, this feature is not available to most people with diabetes.

Calculating active insulin means a correction will be added or subtracted when a BG reading is higher or lower than your target. It’s especially important to keep your log up to date when using this feature. If D Sharp doesn’t know about insulin in your system, it may suggest an insulin dose that is higher or lower than what is needed.


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