Allowable limits of performance in the RCPAQAP general serum chemistry programs
Analyte | Unit | Fixed deviation | To | TAE | Harmonization medical impact/status |
---|---|---|---|---|---|
AST | U/L | 5 | 40 | 12% | Medium/Incomplete |
ALT | U/L | 5 | 40 | 12% | Medium/Incomplete |
ALP | U/L | 15 | 125 | 12% | Medium/Incomplete |
ALB | g/dL | 0.2 | 3.3 | 6% | Medium/Needed |
TP | g/dL | 0.3 | 6 | 5% | Medium/Incomplete |
Na | mmol/L | 3 | 150 | 2% | High/Adequate, Maintain |
K | mmol/L | 0.2 | 4.0 | 5% | High/Adequate, Maintain |
Cl | mmol/L | 3 | 100 | 3% | High/Adequate, Maintain |
Ca | mg/dL | 0.40 | 10.0 | 4% | High/Adequate, Maintain |
P | mg/dL | 0.57 | 7.12 | 8% | Medium/Adequate, Maintain |
Chol | mg/dL | 11.6 | 193.3 | 6% | High/Adequate, Maintain |
Cr | mg/dL | 0.09 | 1.13 | 8% | High/Adequate, Maintain |
*These parameters were used as the acceptance criteria and allowable limits for the within-laboratory comparability verification of multiple instruments. The allowable limits have fixed deviations (+/−) from the target or consensus values up to a particular value (To) and proportional deviations (TAE) at higher values.
Abbreviations: AST, aspartate transaminase; ALT, alanine aminotransferase; ALP, alkaline phosphatase; ALB, albumin; TP, total protein; Na, sodium; K, potassium; Cl, chloride; Ca, calcium; P, phosphate; Chol, cholesterol; Cr, creatinine; TAE, total allowable error; RCPAQAP, Royal College of Pathologists of Australasia Quality Assurance Program.
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