Overview
Blood bank workflow is the controlled sequence of activities that converts a transfusion order into safely tested, selected, issued, and documented blood components for a correctly identified recipient.
Classification
| Step | Starts | Ends |
|---|---|---|
| Order | Clinical request entered | Lab receives actionable order |
| Specimen accept | Sample arrives | Accepted for testing or rejected |
| Type / screen | Testing begins | ABO/Rh ± screen interpreted |
| Select / crossmatch | Units chosen | Compatibility status assigned |
| Issue | Release checks | Component leaves blood bank custody |
| Document | Issue/event capture | Traceable record complete |
Morphologic Features
Workflow reference, not morphologic.
Laboratory Characteristics
- Pending and reserved-unit queues
- Specimen receipt and rejection logs
- Compatibility and special-attribute flags
- Issue/read-back or electronic release audit trails
Reference Intervals
Workflow does not define numeric reference intervals. Sample validity windows, electronic crossmatch eligibility, and product selection rules are institutional, verify current SOPs.
Clinical and Laboratory Significance
Reliable workflow delivers the right component to the right patient with a record that supports lookback, investigation, and continuum of care.
Differential Considerations
When units are late or wrong, classify the defect by workflow step (order, accept, test, select, issue, document) before blaming a single instrument or person.
Comparison Tables
Stop vs delay classification
| Delay / stop type | Example | Acceptable? |
|---|---|---|
| Quality-required stop | Mismatched identifiers on specimen | Yes, mandatory |
| Safety workup delay | Positive screen needing resolution before elective XM | Yes, follow SOP |
| Process bottleneck | Queue behind non-urgent work | Improve prioritization |
| Unsafe shortcut | Issue without identity checks to please OR | Never |
Classification Frameworks
Not applicable.
Laboratory Notes
- Communicate recollection needs early to protect surgical timing
- Complete issue documentation as part of release, not later “when free”
- Emergency release requires documentation defined by local policy
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).
Frequently Asked Questions
Common questions about using this Blood Bank Workflow foundational topics Medical Laboratory Library reference in Medical Laboratory Science education.
What is the Blood Bank Workflow laboratory reference?
Blood Bank Workflow is a Foundational Topics entry in the LabPedia Medical Laboratory Library, written for Medical Laboratory Science reference lookup.
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