17
Understanding Out-of-Range Control Results
w WARNING
The control ranges are printed on the test strip container label. If the control result is
out of range, check this 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.
Were the caps on the test strip
container and the control solution
bottle always closed tightly?
Replace the test strips or control solution if you
think either was uncapped for some time.
Repeat the control test.
Was the test strip used immediately
after it was removed from the test
strip container?
Repeat the control test with a new test strip and
a fresh drop of control solution.
Were the test strips and control
solutions stored in a cool, dry
place?
Repeat the control test with a properly stored
test strip or control solution.
Did you follow the directions? Read the chapter Control Tests and repeat the
control test.
Did you choose the correct control
solution level, either 1 or 2, when
you performed the control test?
If you chose the wrong control solution level,
you can still compare the control result to the
range printed on the test strip container.
Are you still unsure of the problem? Contact the Accu‑Chek Customer Careline on
0800 701 000 (UK) or 1 800 709 600 (ROI).
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