Overview
Chemistry automation encompasses instrument self-operation and optional track/middleware systems that move specimens and apply release rules while MLS staff retain quality accountability.
Classification
| Layer | Examples | Failure mode |
|---|---|---|
| Preanalytical automation | Centrifuge, decapper, aliquotter | Mis-sort, short sample, clot |
| Analyzer automation | Pipetting, measurement | QC fail, flag, clog |
| Middleware | Autoverify, reflex, hold | Incorrect rule logic |
| Track | Conveyor routing | Jam, wrong destination |
Morphologic Features
Automation reference, not morphologic.
Laboratory Characteristics
- Barcode-driven routing
- Status dashboards for pending and held results
- Documented downtime and front-load SOPs
Reference Intervals
Automation does not change reference intervals, but middleware rules must be validated against institutional intervals and delta checks.
Clinical and Laboratory Significance
Reliable automation shortens turnaround for actionable chemistry results when quality gates remain intact.
Differential Considerations
Separate track transport failure from analyzer analytical failure before declaring full section downtime.
Comparison Tables
Automation vs oversight
| Task | Automated? | Human required? |
|---|---|---|
| Specimen transport | Often | Yes during jams |
| QC acceptability decision | Assisted | Yes |
| Critical notification | Alerting assisted | Yes |
| Autoverify eligible CMP | Yes if rules pass | Exception review yes |
Classification Frameworks
Not applicable.
Laboratory Notes
- Validate middleware rules before go-live and after major LIS changes
- Train all staff on manual processing pathways
References
Authoritative textbooks, guidelines, and reviews supporting this reference entry. Verify reference intervals, critical limits, and reflex criteria against institutional protocols and current guideline editions.
Textbooks
- Rifai N, Horvath AR, Wittwer CT, eds. Tietz Textbook of Clinical Chemistry and Molecular Diagnostics. 8th ed. Elsevier; 2022.
- McPherson RA, Pincus MR. Henry's Clinical Diagnosis and Management by Laboratory Methods. 24th ed. Elsevier; 2021.
- Bishop ML, Fody EP, Schoeff LE. Clinical Chemistry: Principles, Techniques, and Correlations. 9th ed. Jones & Bartlett; 2022.
CLSI and Professional Guidelines
- Clinical and Laboratory Standards Institute. Defining, Establishing, and Verifying Reference Intervals in the Clinical Laboratory; Approved Standard. CLSI document EP28-A3c. CLSI; 2010.
- Clinical and Laboratory Standards Institute. Collection of Diagnostic Venous Blood Specimens. CLSI standard GP41. CLSI.
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