Overview
Patient identification for transfusion is the set of independent identity checks performed at each stage of the transfusion chain, collection, laboratory receipt, pre-testing, issue, and bedside administration, designed so that a failure at any single checkpoint does not go undetected downstream. It is distinct from compatibility testing, which confirms specimen-unit compatibility but cannot detect a wrong-patient specimen.
Classification
| Checkpoint | What is verified |
|---|---|
| Collection | Patient identity matches requisition and specimen label |
| Laboratory receipt | Specimen label matches requisition exactly |
| Pre-testing | Specimen identity re-confirmed before testing proceeds |
| Issue | Unit and patient identity verified together |
| Bedside | Final identity check against unit tag before administration |
Morphologic Features
Not a cell-morphology topic, this is an identity-verification workflow reference.
Laboratory Characteristics
- Verify identity independently at each checkpoint, do not treat an earlier check as sufficient for a later one
- Reject specimens with any label-requisition mismatch at receipt
- Treat a current-vs-historical ABO/Rh type discrepancy as a possible identity error requiring investigation
- Halt the process immediately at the point a discrepancy is discovered, including mid-testing
Reference Intervals
Not applicable, qualitative identity-verification workflow. Exact identifier requirements, band systems, and second-verifier policies are institution-specific; verify against current SOP.
Clinical and Laboratory Significance
Identity verification is the control that testing cannot substitute for. A misidentified specimen can pass ABO/Rh typing, antibody screen, and crossmatch correctly while still representing a dangerous wrong-patient error.
Differential Considerations
Distinguish a confidently resolved clerical/labeling error (may be correctable without redraw, per institutional policy) from a discrepancy where true specimen origin is in doubt (requires a new specimen).
Comparison Tables
Identity discrepancy scenarios and required response
| Discrepancy scenario | Required laboratory response |
|---|---|
| Label doesn't match requisition at receipt | Reject specimen; request new one |
| Current type mismatches historical type on file | Investigate as possible identity error before proceeding |
| Confidently resolved clerical error, no doubt about specimen origin | May correct per institutional policy, document thoroughly |
| Any doubt about true specimen origin | Obtain new, properly identified specimen |
Classification Frameworks
Not applicable, laboratory identity-verification workflow, not a WHO disease classification.
Laboratory Notes
- Testing accuracy and specimen identity are separate questions, a correct result does not confirm correct identity
- When identity doubt exists, default to a new specimen rather than a corrected label
- Document every discrepancy, investigation step, and resolution in real time
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
- Cohn CS, Delaney M, Johnson ST, Katz LM, eds. Technical Manual. 21st ed. AABB; 2023.
- Harmening DM. Modern Blood Banking & Transfusion Practices. 7th ed. F.A. Davis; 2019.
- McPherson RA, Pincus MR. Henry's Clinical Diagnosis and Management by Laboratory Methods. 24th ed. Elsevier; 2021.
CLSI and Professional Guidelines
- AABB. Standards for Blood Banks and Transfusion Services (verify current edition and institutional adoption).
- World Health Organization. Blood safety and availability / transfusion guidance (verify current WHO publication and institutional adoption).
Frequently Asked Questions
Common questions about using this Patient Identification for Transfusion additional test references Medical Laboratory Library reference in Medical Laboratory Science education.
What is the Patient Identification for Transfusion laboratory reference?
Patient Identification for Transfusion is a Additional Test References entry in the LabPedia Medical Laboratory Library, written for Medical Laboratory Science reference lookup.
How should students use this medical laboratory encyclopedia page?
Read the structured sections for quick orientation, then follow related links into Academy lessons or Challenge Center practice when you need teaching or assessment.
Does this page replace laboratory textbooks?
No. It is a concise educational laboratory reference. Use recognized laboratory medicine sources and your institutional procedures for definitive practice decisions.
Where can I find related laboratory tests?
Use related links on this page when present, or browse Laboratory Library discipline catalogues for laboratory tests and interpretation references.
Is this content part of Medical Laboratory Education on LabPedia?
Yes. Library references support Medical Laboratory Education alongside Academy courses, medical laboratory quizzes, and laboratory case studies.
Can reference details vary between laboratories?
Yes. Methods, intervals, and reporting conventions vary. Always confirm details against your laboratory’s current protocols.
How do I return to Library search or categories?
Use breadcrumbs to open the Library hub, discipline catalogues, or other reference collections for continued medical laboratory resource browsing.