CLIA Proficiency Testing Event Score and the 80% Rule
CLIA proficiency-testing analyte and event scores against the 80% line, from each analyte's acceptable responses and challenges.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- One analyte per line
- Glucose, 5, 5 Sodium, 5, 5 Potassium, 3, 5 Creatinine, 4, 5
- Previous event, overall
- Satisfactory
- The event before that, overall
- Satisfactory
Result: Event score 85% (17 of 20 acceptable): satisfactory, against the 80% line. Unsatisfactory analytes: Potassium.
The tool opens with these values already filled in. Replace them with your own.
What you enter
- One analyte per line: name, acceptable responses, challenges
- Previous event, overall
- The event before that, overall
How this is calculated
Citation
42 CFR 493.931(c)(4)-(5) and 493.941(c)(4)-(5) (analyte and event scores); 42 CFR 493.841 and 493.851 (80 percent, and unsuccessful performance over two consecutive or two of three events); 42 CFR 493.2. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.