When EQA Goes Wrong: A Corrective Action Playbook for PT Failures
A corrective action playbook for EQA / PT failures — root cause, the CA workflow, effectiveness verification, and how to avoid repeat failures.
Topic
Articles on EQA
3 articles on EQA from the CalibDue blog.
Understanding Z-Scores in EQA: How to Read Your PT Report
What z-scores in EQA reports actually mean, the thresholds that matter, SDI, shift vs drift patterns, and when a 'pass' should still worry you.
CAP vs CLIA Proficiency Testing: Key Differences for Clinical Labs
How CAP and CLIA differ on proficiency testing — consecutive-failure rules, review windows, PT integrity attestation, and the practical implications for labs.
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