Performing a control test lets the user know the meter and test strips are working

properly. A control test should be performed when:

• A new test strip box is opened

• The test strip container has been left open

• The test strips are thought to be damaged

• Checking the meter and test strips

• The test strips were stored in extreme temperatures, humidity, or both

• The meter was dropped

• The test result does not match how the PwD feels

• Checking to see if the PwD is performing the test correctly