When should I perform a control solution test on my meter?

You should perform a control test when you first receive the meter, at least once a week for routine checks, when you begin using a new vial or foil packet of test strips, if you suspect the meter or strips are not working properly, if results are inconsistent with how you feel, when practising the testing process, or if you have dropped or may have damaged your meter. The control test range printed on the test strip vial is for control testing only and is not a recommended range for your actual blood glucose or ketone level. (Page 16)