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3. If the control solution testing result is out of range:
POSSIBLE CAUSE WHAT TO DO
Read instructions thoroughly
and repeat the test again.
Shake the control solution
vigorously and repeat the test
again.
Check the expiry date of the
control solution.
Control solution, meter, and test
strips should be at room
temperature (68°F to 77°F /
20°C to 25°C) before testing.
Repeat the test with a new test
strip.
Please contact customer
services.
Error in performing the test.
Control solution vial was poorly
shaken.
Expired or contaminated control
solution.
Control solution that is too
warm or too cold.
Defective test strip.
Meter malfunction.
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