FAQs - Control Solution

Control Solution

What is control solution used for?

Control solution is used to check the accuracy of a blood glucose meter. If the accuracy of a blood glucose meter is not checked periodically, there is a risk that an inaccurate meter may go undetected. That could lead to incorrect treatment decisions and potentially harmful outcomes. 

What is control solution?

Control solution is a liquid that contains a specific amount of glucose. Usually there are two solutions, with one having a low level of glucose and the second having a high level of glucose.

How is control solution used?

To check a meter's accuracy, a drop of control solution is used instead of a drop of blood when running a test. The test result is then compared to an acceptable range printed on the container label. If the result is within the acceptable range, then the meter is producing accurate results.

When should control solution be used?

  • After opening a new container of tests.
  • After you have replaced the batteries.
  • After you have cleaned your meter.
  • If you obtain unexpected results.
  • If you have left the cap off your container of test strips. 
  • If the meter has been dropped or exposed to extreme heat (left in a hot car)
  • Whenever you suspect the meter or test cassette/strips may not be functioning properly.

Does control solution recalibrate a blood glucose meter?

No. Blood glucose meters are factory calibrated and can not be recalibrated by the end user. 

The acceptable range of values for control solution 1 and 2 can be found on the cassette container label.

When you use control and flag the result as control 1 or 2 the meter will automatically check the range for you