How do Automated Urinalysis Systems work?
The platform links two analytical modules through one sample and one worklist. The chemistry module dips a reagent strip, reads the pads by reflectance photometry at defined wavelengths, applies colour and ascorbate compensation and reports semiquantitative categories. The sediment module either uses flow cytometry with a nucleic acid stain and scatter signals to classify particles by size, granularity and fluorescence, or images a sediment chamber or centrifuged slide and classifies particles by pattern recognition. The software merges both result sets into one report, applies review rules such as reflex microscopy for flagged samples, and transmits results to the laboratory information system. Sample barcode reading, mixing before aspiration and automatic washing between samples reduce operator handling and improve traceability, while quality control records and reagent lot tracking support accreditation.
Which Automated Urinalysis Systems variants are available?
- Automated Urinalysis Workstation — An automated urinalysis workstation combines strip chemistry and sediment analysis in one instrument with a shared sample path and single report.
- Fully Automated Urinalysis Analyzer with Flow Imaging Sediment Module — This analyzer uses flow imaging in the sediment module, capturing digital images of particles as they pass a camera and classifying them with pattern recognition.
- Modular Automated Urinalysis System — A modular urinalysis system consists of a chemistry module and a sediment module that can operate together or independently, sharing one middleware layer.
- Track-Connected Automated Urinalysis System — This system connects urinalysis chemistry and sediment modules to a laboratory automation track, receiving urine tubes by barcode and returning them after analysis.
- High-Throughput Automated Urinalysis System — A high-throughput urinalysis system processes 200 to 400 samples per hour with parallel chemistry and sediment lines and continuous loading.
How do I choose the right variant?
Choose an automated urinalysis system when sediment results are required routinely and the daily sample number exceeds a few hundred, or when manual microscopy cannot keep up with the workload. Compare systems by which sediment technology is used, the particle classes reported, whether a microscope image is available for review, and the review rules offered. Check the chemistry parameters, cross-contamination control between samples, barcode handling and the combined report format. Confirm the throughput on a realistic mixture of normal and abnormal samples, since flagged samples take longer, and the sample volume needed for both modules. Verify LIS integration and the traceability features, and plan a downtime procedure because a single platform carries both chemistry and sediment reporting.
Where are Automated Urinalysis Systems used?
Automated Urinalysis Systems are specified in hospital routine urinalysis with combined reporting, nephrology and urology outpatient testing, emergency department urine screening and high-volume screening programmes.
Which standards and certifications apply?
Work with Automated Urinalysis Systems is commonly governed by ISO 15189, CLSI GP16, CLSI EP05, CLSI AUTO10, CLSI POCT04, IEC 61010-1 and IEC 61010-2-101. Instrument certifications such as CE marking are confirmed per configuration and never assumed.
What are the key considerations before purchase?
Install the system on a level bench with controlled temperature, stable power and enough space for reagent and waste containers, and verify each module separately before validating the combined workflow with a set of normal and abnormal samples compared against manual microscopy. Define the review rules and test them before go-live, since rule errors affect which results are released automatically. Daily work includes running chemistry control strips and sediment control material, checking reagent and strip status and inspecting the flow cell or imaging chamber for deposits. Wash solutions, cuvettes and flow cells require scheduled cleaning, and results flagged by the system should be reviewed according to documented criteria. Treat all urine samples and waste as potentially infectious.
