you are not following all test steps or performing them incorrectly.

the code number on the meter does not match the code number on the test strip vial.

the meter or test strip holder is dirty.

the control solution is expired, or beyond its discard date, contaminated, or not well mixed.

there is a problem with the test strip (expired, damaged, etc.).

the meter has malfunctioned.

the control solution test is performed outside of the temperature range 15–35°C (59–95°F).

you have applied too much control solution.

If your control solution result falls outside the printed range, repeat the control solu- tion test with a new test strip. If your second control solution result is also outside the printed range, call the OneTouch® Customer Care Line at 1 800 663-5521.

WARNING: Do NOT use your system to test your blood when your control solution results fall outside the printed range. You may get inaccurate blood glucose results. Call the OneTouch® Customer Care Line

at 1 800 663–5521 if this occurs.

C H E C K I N G

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Lifescan SPD2410BD manual You have applied too much control solution