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Updated: Jul 18, 2026

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Evaluation of a Point-of-Care Testing Analyzer for Measuring Peripheral Blood Leukocytes
Published on: March 22, 2022
Validation of the Beckman Coulter AcT 5 diff analyzer in a reference laboratory
1Clinical Laboratories Unit, Valle de Hebron Hospital Complex, Barcelona, Spain. caulesa@vhebron.net
Summary
The Beckman Coulter AcT 5 analyzer demonstrates reliable performance for basic hemogram parameters, showing low imprecision in both controls and patient samples. This hematology analyzer effectively handles interfering factors, supporting routine laboratory diagnostics.
Area of Science:
- Clinical Laboratory Science
- Hematology
- Analytical Chemistry
Background:
- Accurate and reliable hematology analysis is crucial for patient diagnosis.
- Interfering factors can compromise the accuracy of automated blood cell counts.
- Evaluating new diagnostic instrumentation is essential for laboratory efficiency.
Purpose of the Study:
- To evaluate the performance, reliability, and practicability of the Beckman Coulter AcT 5 analyzer.
- To assess the impact of interfering factors on automated leukocyte differential counts.
- To determine the utility of the AcT 5 in resolving issues with other hematology analyzers.
Main Methods:
- Assessed within- and between-run imprecision using known controls and patient samples.
- Analyzed the influence of jaundice, lipemia, hemolysis, platelet aggregates, and schistocytes on leukocyte differential results.
- Evaluated ease of use, speed, and cost-effectiveness of the AcT 5.
- Compared AcT 5 performance in resolving issues with Beckman Coulter GenS/LH-750 and Bayer Advia 120 analyzers.
Main Results:
- Observed low imprecision for basic hemogram parameters (1.05%-6.97% with controls, 1.33%-5.98% with patient samples).
- Demonstrated the AcT 5's ability to manage various interfering factors in automated leukocyte differential analysis.
- Found the AcT 5 to be easy to use, fast, and cost-effective.
- Confirmed the AcT 5's value in supporting routine laboratory diagnostics by resolving interferences.
Conclusions:
- The Beckman Coulter AcT 5 analyzer offers reliable performance for routine hematology testing.
- The analyzer effectively mitigates the impact of common interfering substances on differential counts.
- The AcT 5 is a practical and valuable addition to the clinical laboratory, enhancing diagnostic support.

