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Message
What it means
What to do
A used test strip was
inserted.
Repeat the test with a
new test strip.
The blood or control
solution sample was
applied before the
symbol
appeared.
Repeat the test with a
new test strip and wait
until the
symbol
appears before applying
the blood or control
solution sample.
The temperature during
the test was above or
below the operating
range.
Move to an area where
the temperature is within
the operating range
42.8–111.2ºF (6–44ºC).
Repeat the test after the
meter and test strips have
reached a temperature
within the operating range.
The blood sample has
abnormally high viscosity
or insufficient volume.
Repeat the test after
inserting a new test strip.
Understanding Error Messages