|
|
The HEMOCHRON Jr. offers a
simple, one-step procedure using fresh whole blood samples to evaluate essential
coagulation parameters: the ACT+, ACT-LR, APTT and PT. Test results are reported
in plasma equivalent values and INR for PT, plasma equivalent values for APTT and in
celite ACT equivalent values when performing the ACT+ or ACT-LR. By converting
whole blood results into traditional, laboratory test value form, the HEMOCHRON Jr.
delivers results in familiar clinical parameters facilitating accurate clinical data
interpretation. In this way, near-patient testing can truly become an extension of the
clinical laboratory.
Because of the varying sensitivities of different brands and lots
of plasma based APTT and PT reagents, and because of different methodologies
used on coagulation instrumentation, results obtained using various
combinations of instrument/reagent systems will differ. Studies have
shown that in the majority of instances clinical interpretation of
test results is similar even if the actual results are not identical.
The inherent value of point-of-care hemostasis monitoring, namely
timeliness of test results, must be supplemented by determination
of correlation with your current method.
While no two coagulation
instrument/reagent systems produce results that match exactly, systems
can be correlated to provide statistically acceptable results so
as not to alter the overall clinical interpretation of the test results.
To perform a correlation between two systems, ideally, samples would
be tested simultaneously on each system using the same blood sample.
Logistically, this becomes difficult when one system performs tests
using a whole blood sample at the bedside, and the other system uses
a plasma based sample and is performed in the laboratory.
ITC suggests the attached recommended correlation protocol and data collection
form to minimize the data collection variables (such as time elapsed
between blood sample collection and test performance) when performing
a correlation between whole blood and plasma-based coagulation systems.
The protocol is segmented into parts to allow the user to become
familiar with the HEMOCHRON Jr. test procedures prior to
|
|
