ESR Analyzer Integrated with a Hematology Analyzer

What is the ESR Analyzer Integrated with a Hematology Analyzer?

This configuration pairs an ESR module with a hematology analyzer so that one EDTA tube yields a blood count and a sedimentation rate in a single run. It suits clinics and small hospitals that order both tests frequently and want to reduce sample handling.

Overview

The system shares sample aspiration and identification between the counting channels and the ESR module. After the blood count is measured, or in parallel, the module draws blood into a capillary or small vial and tracks the sedimentation interface optically at controlled temperature, reporting the rate in millimeters per hour. Software presents a combined report, applies age and sex reference ranges, and can suppress the ESR result when the hemoglobin or red cell count is outside defined limits, since a low red cell mass alters sedimentation independently of inflammation. Reagent and consumable logistics, quality control and interfaces are unified, which reduces training and bench space. The ESR portion must be validated against the Westergren method as a separate measurement.

How does it work?

When anticoagulated blood stands in a vertical tube, red cells aggregate and settle, leaving a column of clear plasma above them. The height of that plasma column after one hour, expressed in millimeters, is the Westergren sedimentation rate. Aggregation is promoted by fibrinogen and globulins, so an elevated rate indicates an acute phase response even though the test is not specific for any diagnosis. Automated instruments reproduce this process with capillary tubes held vertically at a controlled temperature, usually 18 to 25 degrees Celsius, and track the falling interface with an array of photodiodes or an infrared sensor. Because the settling curve is nonlinear, algorithms extrapolate a one-hour value from a shorter measurement period, and the algorithms are validated against the Westergren reference method. Some instruments read standard Westergren tubes with a barcode instead of using capillary tubes.

What are the key features?

• Shared sample identification and aspiration with the blood count
• Combined report of complete blood count and sedimentation rate
• Optical interface tracking at controlled temperature
• ESR suppression rules based on hemoglobin and red cell limits
• Unified quality control and reagent management
• Single LIS interface for both measurements

What are the technical specifications?

A typical esr analyzer integrated with a hematology analyzer configuration offers blood count throughput of 50–80 samples/h, ESR throughput of 20–40 samples/h, ESR measuring range of 0–120 mm/h, sample volume of 25 µL for count; 150 µL for ESR, sample type of Single EDTA tube for both tests and ESR temperature of 18–25 °C controlled module. Values are indicative of the product class; the exact figures for each configuration are confirmed on the quotation and the calibration documents supplied with the instrument.

Which applications is it used for?

The ESR Analyzer Integrated with a Hematology Analyzer is used in combined blood count and ESR clinics, outpatient rheumatology and internal medicine, health screening with both tests and small hospital routine testing. Across the wider ESR Analyzers class, laboratories also deploy it for screening for inflammatory and infectious disease, follow-up of rheumatoid arthritis and vasculitis and monitoring of polymyalgia rheumatica and giant cell arteritis.

Which standards and certifications apply?

Relevant standards and methods include ISO 15189, ICSH ESR reference method, CLSI H02, CLSI EP05, IEC 61010-1 and IEC 61010-2-101. Certification candidates for this model are CE, ISO 13485 manufacturing and NMPA class II registration; each is to be confirmed for the specific configuration before shipment, and certificates are supplied only where they have been issued.

Place the analyzer on a stable surface free of vibration, because any movement disturbs the settling interface, and keep it away from direct sunlight and heat sources so that the measuring position stays within the specified temperature range. Verify performance at installation against the Westergren reference method on at least forty samples spanning normal and elevated values, and repeat the comparison after major service. Run control material at the recommended frequency, usually daily when samples are reported, and keep the optical windows, tubes and holders clean. Use only the specified capillary or Westergren tubes, since tube bore and cleanliness affect the result, and treat all blood samples and used tubes as infectious waste.

How do I select the right ESR Analyzer Integrated with a Hematology Analyzer?

Select this variant when both tests are requested frequently and sample handling is the bottleneck. In the RFQ confirm that the ESR algorithm is validated against the Westergren method, that the module can run ESR-only requests, and that the counting performance is unaffected by the shared platform. Ask how the combined report is displayed and whether the LIS can separate the two results.

How does it compare with other ESR Analyzers variants?

Choose an ESR analyzer when the test is requested often enough that manual Westergren tubes consume unacceptable technician time, generally more than ten to twenty tests per day. Compare instruments by throughput, sample volume, tube type and the temperature control of the measuring position. Capillary photometry models accept small volumes and suit pediatric work, while instruments reading standard Westergren tubes may be preferred where the reference method must be preserved for accreditation. Check whether the analyzer needs a dedicated blood collection tube or can use an EDTA or citrate tube already collected, and whether mixing is automatic. Confirm quality control material availability, calibration or verification procedure, and biosafety features such as closed tube handling.