Control solution out-of-range results may be due to:

Incorrect unit of measure.

Error in performing the test.

Failure to shake the control solution vial well.

Improper meter coding.

Test strip deterioration.

Meter malfunction.

Failure to discard the first drop of control solution and wipe the dispenser tip clean.

Expired or contaminated control solution.

The meter, test strips, or control solution are too warm or too cold.

CAUTION: If you continue to get control solution test results that fall outside of the range printed on the vial, the system may not be working properly. Do Not use the meter. Call LifeScan Customer Service at 1 800 227-8862.

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