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Updated: Jun 1, 2026
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Evaluation of a Point-of-Care Testing Analyzer for Measuring Peripheral Blood Leukocytes
Published on: March 22, 2022
[Comparison and evaluation of testing results for two different coagulation analyzers]
Jun-lin Hou1, Xu-hong Zhao, Man Zhang
1Department of Clinical Laboratory, Beijing Shijitan Hospital, Beijing 100038, China.
Zhonghua Yi Xue Za Zhi
|May 26, 2011
Summary
A new fully automatic coagulation analyzer demonstrates excellent performance, meeting all user manual requirements. Its testing results are consistent with the established analyzer, ensuring reliable hemostasis testing.
Area of Science:
- Clinical Chemistry
- Hematology
- Laboratory Medicine
Background:
- Accurate hemostasis testing is crucial for patient care.
- Evaluating new diagnostic instrumentation is essential for maintaining laboratory quality.
Purpose of the Study:
- To assess the performance of a new fully automatic coagulation analyzer.
- To compare its results against a validated, existing analyzer.
Main Methods:
- Evaluated precision, linearity, carryover, and accuracy against national standards.
- Compared results with a confirmed analyzer using NCCLS EP-5 and EP-9 guidelines.
Main Results:
- The new analyzer showed high precision (intra-assay <3.19%) and excellent linearity for fibrinogen (y = 1.012x + 0.0219, P > 0.05).
- Carryover was minimal (-2.33%), and bias for PT and FIB fell within acceptable CLIA'88 limits.
- Results demonstrated consistency between the new and confirmed analyzers.
Conclusions:
- The new coagulation analyzer meets all performance specifications outlined in its user manual.
- The instrument provides consistent and reliable testing results comparable to established systems.
