Accu-Chek Aviva Combo Owner's Booklet page 261

Display Shows Possible Cause(s)
E-53 Bad Test A meter or test strip error has
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Error occurred.
Your blood glucose may be
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extremely high.
Possible Solution(s)
Discard the test strip and repeat the test.
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If this matches how you feel, contact your
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healthcare professional immediately. If it does not
match how you feel, repeat the blood glucose test
and see Chapter 2, Testing Your Blood Glucose. If
this still does not match the way you feel, run a
control test with your control solution and a new
test strip. If the control result is within the
acceptable range, review the proper testing
procedure and repeat your blood glucose test with a
new test strip. If the E-53 error still appears for your
blood glucose test, your blood glucose test result
may be extremely high and above the system's
reading range. Contact your healthcare
professional immediately. If the control test result
is not within the acceptable range, see Chapter 3,
Control Testing.
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