Who this is for: quality directors and supervisors in blood centers and transfusion services with an AABB assessment on the calendar — and a paper-and-spreadsheet evidence trail behind them.
How assessors actually sample
AABB assessors don't read your quality manual cover to cover — they pull threads. A unit number becomes a traceability walk. A reagent lot becomes a qualification question. A thermometer becomes a calibration history request. The assessment goes well when every thread pulls clean, which is a property of your daily records, not your prep.
The five evidence chains that get pulled
Nearly every finding lives in one of five chains: donor-to-unit traceability, daily QC with corrective action on failures, equipment and alarm records, training and competency currency, and document control with obsolete-version prevention. Rate your confidence in each chain honestly — the one you hesitate on is where the assessor will land, because hesitation and gaps have the same root.
The Friday-pen problem
Assessors know the pattern: a month of maintenance checks signed in the same ink with the same pen pressure, dated across four weeks. Batch-signed records don't just fail the task — they impeach every other record in the binder. The fix is structural: records captured at the moment of work, timestamped by the system, escalated when missed.
90, 60, and 30 days out
At 90 days: run an internal audit against the standards checklist and open real CAPAs on what you find — findings you're already fixing count in your favor. At 60: close the training gaps, because currency takes weeks. At 30: stop generating new paper and rehearse the walkthrough — who answers, from which records, in what order. Never fabricate currency; assessors detect it, and it converts a finding into a credibility problem.
The alternative to the sprint
Centers that run their daily QC, equipment, and training inside one connected system don't do the 90-day sprint, because the evidence is the work itself. That's the difference between assessment prep as a reconstruction project and assessment prep as a walkthrough of Tuesday.
t inspection question answered from the system in seconds.