19
Control Tests
3
or
OK appears if the control result is
within range.
Err appears if the control result is out
of range.
Wipe the tip of the
bottle with a tissue.
Cap the bottle tightly.
Remove and discard
the used test strip.
NOTE
The meter turns o 90 seconds after a
successful test or 15 seconds after the
test strip is removed, provided no
other action is taken.
Understanding Out-of-Range Control Results
w WARNING
Risk of a serious health incident
Incorrect test results can lead to wrong therapy recommendations.
The control ranges are printed on the test strip container label. If the control result
is out of range, check that the meter and test strips are working properly. Check the
following list to help solve the problem.
Troubleshooting Checks Action
Were the test strips or control
solutions expired?
Discard the test strips or control solution if
either is past the use by date. If the control
solution was opened more than 3 months ago,
discard it. Repeat the control test with an
unexpired test strip and an unexpired control
solution.
Did you wipe the tip of the
control solution bottle before
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.
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