Do a test with the control solution:
- When you receive the meter and try it for the 1st time,
- At least once a week to regularly check the meter and the test strips,
- When you begin using a new container of test strips,
- When you think that the meter or test strips are not working properly,
- When your blood glucose test results don’t match how your feel,
- If you think the results are not accurate or during the testing process
- If the device has fallen or you think you have damaged it.