Overview
Donor and recipient concepts describe the dual safety pathways of transfusion: protecting donation suitability and product traceability on one side, and protecting specimen identity, compatibility testing, and correct issue on the other.
Classification
| Side | Protective focus | Example control |
|---|---|---|
| Donor | Suitability + product identity | Questionnaire / testing / unit label |
| Recipient | Correct patient specimen | Two-identifier check at draw/receipt |
| Issue | Right unit to right patient | Issue verification per SOP |
| Traceability | Link donor ↔ recipient later | Lookback / quarantine records |
Morphologic Features
Conceptual reference, not a morphologic topic. Identity and eligibility are process controls surrounding immunohematology observations.
Laboratory Characteristics
- Separate donor records from recipient testing records with shared traceability keys
- Specimen rejection and redraw pathways for identity failures
- Quarantine and notification pathways for donor lookback events
Reference Intervals
This topic does not define numeric reference intervals. Donor eligibility criteria, deferral intervals, and specimen validity windows are institutional and regulatory, verify locally; do not invent absolute cutoffs from educational text.
| Concept | Meaning | Notes |
|---|---|---|
| Eligibility framing | Whether donation may proceed under current rules | Details are local/regulatory |
| Two identifiers | Minimum identity elements per policy | Elements vary by institution |
| Sample validity | How long a specimen may be used for testing/issue | SOP-defined |
Clinical and Laboratory Significance
Dual-pathway identity control reduces wrong-blood-in-tube events, wrong-unit issue, and delayed recognition of donor-product problems after distribution.
Differential Considerations
When transfusion safety is questioned, distinguish donor/product suitability issues from recipient identity or compatibility issues before assigning a single root cause.
Comparison Tables
Donor vs recipient safety lens
| Question | Donor side | Recipient side |
|---|---|---|
| Who is protected first? | Donor + future recipients of the unit | Intended patient for this transfusion |
| Key failure mode | Unsuitable donation / labeling break | Wrong-blood-in-tube / wrong issue |
| Typical MLS action | Honor holds / lookback status | Reject mismatch; redraw per SOP |
Classification Frameworks
WHO blood-safety guidance frames voluntary donation and testing principles at a systems level; hospital practice still follows institutional SOPs and national regulations.
Laboratory Notes
- Teach eligibility as a framework, never as memorized universal numeric cutoffs
- Identity mismatches are process failures, not opportunities for informal label edits
- Hedge: two-identifier elements, redraw rules, and donor criteria are institution-specific
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).
- U.S. Food and Drug Administration. Code of Federal Regulations Title 21 . Blood and Blood Components (verify current institutional adoption).
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