CoaguChek XS System User Manual for Self-Testing, version 10.0 USA
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Very Low or Very High Test Results
The CoaguChek XS PT test strips provide test results
in the measuring range of 0.8 to 8.0 INR. If the meter
displays < (less than) 0.8 INR or > (greater than)
8.0 INR, repeat the test. If, when you repeat the test,
you get the same result (either <0.8 INR or >8.0 INR),
call your doctor, as the result is out of the measuring
range of the meter.
Only for software versions 5.40 and lower:
If the result is displayed in %Q or Sec, follow the
instructions in the procedure Setting the measuring
unit to INR (page 22) or call the Roche Customer
Support Center at 1-800-428-4674 to reset the
measuring unit to INR. If the measuring unit is set
correctly to INR, repeat the test.
If, when you repeat the test, you get the same result
(either < 0.8 INR or > 8.0 INR), call your doctor.
OR