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45
Xprecia Stride
User Guide
3. Performing a LQC test
Understanding the QC test
Always perform QC tests in accordance with local, state,
and federal guidelines.
QC tests help maintain regulatory compliance
requirements, as applicable to your facility. Use control
solutions to perform quality control checks on Stride and
the test strips to ensure they are functioning correctly.
About QC
The Xprecia System PT Controls kit contains assayed liquid
quality controls (LQC) for the assessment of precision and
analytical bias in the normal (Xprecia System PT Control 1)
and therapeutic (Xprecia System PT Control 2) range for
the International Normalized Ratio (INR) to be used with
the Xprecia System PT/INR Strips.
The method-dependent assigned values and ranges for
each lot of PT Control 1 and PT Control 2 appear on each
vial as a barcode to be read by the Xprecia Analyzer. When
the barcode on the control vial is scanned, the assigned
range for each lot-specific level of LQC can be read on the
analyzer screen display as an INR value.
The assigned ranges are set as ± 0.2 INR from the mean
assigned value for PT Control 1 and ± 0.6 INR from the
mean assigned value for PT Control 2. The assigned ranges
are based on 2SD of the systems total variability.
You must perform QC tests at the start of each shift and
with every new lot, new shipment, or as required by local,
state, and federal or national regulations.
Refer to the
Xprecia System PT Controls Instructions For
Use
for more information on quality controls.
Requirement
Don't allow control solution to leak into the
test strip port, as it may damage Stride.
Quality Control Description
PT
C
ONTR
OL
1
lyophilized
preparation of human plasma
buffers
stabilizers
PT
C
ONTR
OL
2
lyophilized
preparation of human plasma
buffers
stabilizers
CaCl
2
DIL
UENT
CaCl
2
solution [0.010 mol/L]
Preservative: EC No. 247-500-7
–
5-chloro-2-methyl-4-isothiazolin-3-one
Preservative: EC No. 220-239-6
–
2-methyl-4-isothiazolin-3-one
Reconstituting the control solution
INSTRUCTIONS
1. Have the test strip vial and the vial lot information on
the vial available.
2. Ensure the bottle of control solution and
the lot information are available.
3. Use one transfer pipette to combine the entire volume
of 1 vial of diluent (CaCl
2
) into 1 control vial.
4. Mix carefully, by swirling the bottle using a circular
motion, to completely dissolve all of the control plasma
inside. Don't shake in order to avoid foam formation.
5. Close the bottle and allow to stand for at least
5 minutes at 15–25°C (59–77°F).
6. Gently swirl the bottle again prior to use.
Содержание XPRECIA STRIDE
Страница 2: ...XPRECIA STRIDE USER GUIDE ...
Страница 4: ...1 Start here ...
Страница 6: ...2 1 Exploring Stride ...
Страница 20: ...30 2 Per forming a patient test ...
Страница 26: ...42 3 Per forming a LQC test ...
Страница 30: ...50 4 Ch anging the settings ...
Страница 35: ...60 5 Performing troubleshooting and maintenance ...
Страница 43: ...76 Appe ndix A Specifications ...
Страница 45: ...80 Appendix B Safety ...
Страница 48: ...86 A ppendix C Operational theory ...
Страница 51: ...92 Appendix D Symbols ...
Страница 53: ...96 Appendix E Glossary ...