4. The control solution test result is out of range.
PROBABLE CAUSE
Error in performing the test.
Improper code number.
Control solution vial shaken poorly.
Expired or contaminated control
solution.
Control solution that is too warm or
too cold.
Test strip deterioration.
Monitor malfunction.
56
WHAT TO DO
Read the instructions thoroughly
and repeat the test again.
Check if the code number on the
display matches the code number
on the test strip vial.
Shake the control solution
vigorously and repeat the test again.
Check the expiration date or the
opening date of the control
solution.
Allow control solution, monitor and
test strips to be at room tem-
perature (68-77°F/20-25°C) before
testing.
Repeat the test with a new test
strip.
Contact Customer Care Line at
1-888-307-8188, 1-866-469-2632
for help.