Roche CoaguChek XS System - How the System Works

CoaguChek XS System User Manual for Self-Testing, version 10.0 USA
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How the System Works
The CoaguChek XS System includes a meter and
CoaguChek XS PT test strips. Each box of test strips
has its own code chip that you insert into the meter.
The code chip contains important information about
the test strips such as their expiration date and lot
number.
The display on the meter guides you through the
testing process. With the code chip inserted in the
meter, you simply insert a test strip and apply a blood
sample when the meter is ready. The meter displays
the result in about a minute. The meter automatically
stores the result in memory so that you can easily
recall results.
The CoaguChek XS PT test strip contains various
ingredients. When a blood drop is applied, the meter
starts the test and the blood mixes with the
ingredients on the test strip. When the meter
determines that the blood has clotted, it stops the
measurement and calculates the result.