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Your blood glucose may be extremely high or a meter or a test strip error has
occurred.
• If your test result matches how you feel, contact your healthcare professional
immediately.
• If your test result does not match how you feel, repeat the blood glucose test.
See Chapter 2, Unusual Blood Glucose Results.
• If the E-3 code still appears for your blood glucose test, your blood glucose
result may be extremely high and above the system's reading range.
Contact your healthcare professional immediately.
• If the second test result does not match how you feel, perform a control
test with the control solution and a new test strip.
Not enough blood or control solution was drawn into the test strip for
measurement or was applied after the test had started. Discard the test strip and
repeat the blood glucose or control test.
This message may appear when using a white code chip in the meter. It means
the white code chip is from an expired lot of test strips. Turn the meter off and
insert a black activation chip. Make sure the time and date in the meter are
correct.
Blood or control solution was applied to the test strip before the flashing drop
symbol appeared on the display. Discard the test strip and repeat the blood
glucose or control test.
An electronic error occurred, or in rare cases, a used test strip was removed and
reinserted. Turn the meter off and on, or take the batteries out for 20 seconds and
reinsert them. Perform a blood glucose or control test.
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Maintenance and Troubleshooting
• If the control result is within the acceptable range, review the proper
testing procedure and repeat the blood glucose test with a new test
strip.
• If the control result is not within the acceptable range, see Chapter 4,
Understanding Out-of-Range Control Results.
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