23
Understanding Out-of-Range Control Test Results
WARNING
The control range applies only to a control result. It only indicates that the test strips and meter are
working properly. Do not use a control result to interpret blood glucose results.
If the control result is outside the acceptable range (printed on the test strip container), do not use the meter
until you solve the problem. Check this list to help solve the problem:
Troubleshooting Checks Action
1. Are the test strips or control solution past the
Use By or discard date?
If either is past the Use By or discard date, throw it
away.
2. Did you wipe the tip of the control solution
bottle with a tissue prior to use?
Wipe the tip of the bottle with a tissue. Repeat the
control test with a new test strip and a fresh drop of
control solution.
3. Were the test strip container and control
solution bottle always closed tightly?
If you think either may have been uncapped for some
time, replace the test strips or control solution.
4. Was the test strip used immediately after
removing it from the container?
Repeat the control test with a new test strip and a
fresh drop of control solution.
5. Were the test strips and control solution stored
in a cool, dry place?
Repeat the control test with a properly stored test
strip or control solution.
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