Control Solution

Blood glucose control solution is a specially formulated liquid used to verify that a blood glucose monitor is reading accurately before you rely on it for diabetes management decisions. Control solution contains a known concentration of glucose, so when you test it, the meter should return a result within a specific expected range.

Blood glucose control solution is designed for anyone who uses a blood glucose monitor to manage diabetes, including people with Type 1, Type 2, or gestational diabetes. Using control solution is especially important after opening a new test strip vial, dropping your meter, or getting a reading that seems unusually high or low.

Start by applying a small drop of blood glucose control solution to a test strip exactly as you would apply a blood sample, then compare the meter's result to the acceptable range printed on your test strip vial. If the result falls outside that range, the meter or strips may need to be replaced or recalibrated.

Blood glucose control solution is brand and model specific, meaning the solution must match the exact meter and test strip brand you are using to produce a valid accuracy check. Always check the packaging of both the control solution and your test strips to confirm compatibility before purchasing.

Yes, blood glucose control solution does expire, and using an expired solution can produce inaccurate results that make it impossible to properly verify your meter's performance. Most control solutions also have a secondary expiration date after opening, typically around three months, which is printed on the bottle or package insert.

Because blood glucose monitors can give inaccurate readings due to damaged strips, extreme temperatures, or meter malfunctions, using blood glucose control solution helps confirm the device is working correctly before you make any treatment decisions. Regular accuracy checks with control solution are a recommended part of responsible diabetes self-management.

Blood glucose control solution comes in different levels, where Level 1 typically represents a low glucose concentration and Level 2 represents a normal or high glucose concentration, allowing users to test meter accuracy across a broader range. Using both levels gives a more complete picture of whether the meter is performing correctly at different glucose values.

Store blood glucose control solution at room temperature, away from direct sunlight, heat, and moisture, and always keep the cap tightly closed when not in use. Avoid storing control solution in a refrigerator or a hot car, as extreme temperatures can alter the glucose concentration and lead to inaccurate test results.

Yes, blood glucose control solution is safe to handle for routine meter testing when used as directed, but it is not intended for internal use and should be kept out of reach of children. Always wash your hands after handling control solution and dispose of used materials according to your local guidelines for diabetic testing supplies.

No, blood glucose control solution cannot be used as a substitute for an actual blood sample when monitoring your blood sugar levels, because control solution is only designed to verify meter accuracy, not to measure a person's glucose. Always use a fresh blood sample from a finger stick or approved alternate site when checking your actual blood glucose reading.