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