Test Strips and control tests

When and why is it helpful to test with a control solution?

Performing a control test lets the user know the meter and test strips are working properly. Perform a control test when:

  • You open a new test strip box
  • You left the test strip container open
  • You think the test strips are damaged
  • You want to check the meter and test strips
  • The test strips were stored in extreme temperatures, humidity, or both
  • You dropped the meter
  • Your test result does not match how you feel
  • You want to check if you are performing the test correctly

Testing blood sugar (glucose)

Why does the test sometimes start even if yellow is still showing in the strip window?

The system automatically detects when enough blood has been applied to the strip and begins the test, even if some yellow is still visible. The only time you need to apply more blood is when the blood drop symbol continues to flash in the display.