Introduction
12
If you need help
Information about using the system, the screen menus, and performing a test can be found in this
manual.
When error messages appear on the screen, refer to chapter 10 Troubleshooting.
For all questions about the CoaguChek XS Plus system that are not answered in this manual,
contact your Roche representative or Roche Diagnostics Technical Service. In order to expedite
troubleshooting, please have ready your CoaguChek XS Plus meter, its serial number, this man-
ual, and all related consumables when you call.
General note
The data and information provided in this manual are current as of issue. Any substantial
changes will be incorporated in the next edition. If there is any conflict of information, the pack-
age insert included with the CoaguChek XS PT Test strips shall prevail.
What can the system do for you?
The CoaguChek XS Plus system makes coagulation testing easy. You only need to insert the
code chip, power the meter on, insert the test strip, and apply a small blood sample. The blood
mixes with the reagents on the test strip, and the meter determines when the blood clots. The
meter displays the results in about one minute. After the measurement, the meter automatically
stores the test result, together with date/time and patient ID (and operator ID, if that option is
enabled) to memory.
The CoaguChek XS Plus meter displays test results in units equivalent to laboratory plasma
measurements. Results may be displayed in three ways:
■ International Normalized Ratio (INR)
■ combination of INR/seconds, or
■ combination of INR/%Quick
INR is a standardized measurement of the rate at which blood clots. A low INR can indicate an
increased risk of blood clots, while an elevated INR can indicate increased risk of bleeding.
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