Programs Supported

Calibration Verification/Linearity Program

The advantages of these Surveys include:

• Consistent analytical approach to the assessment of method linearity and calibration agreement with peer group
• Liquid specimens that cover broad ranges to challenge assays from near zero to the top of the analytical measurement range for most clinical analyzers
• A method to identify failing automated systems before failure in graded proficiency testing occurs
• A method to help identify precision problems
• Comprehensive selection of analytes and programs to encompass a broad testing menu
• Satisfies the requirements for scheduled verification of the analytical measurement range of the CAP Laboratory Accreditation Program and CLIA calibration verification under 42 CFR 493.1255 (b)(3) for most analytes
• Custom reports that include the Executive Summary for a quick overview of performance and a Comprehensive Evaluation Report with specific analyte information

Instrumentation Program

• I Survey – Instrumentation
• IFS – Interfering Substance Survey
• SCO – Serum Carryover Survey
• UTCO – Urine Toxicology Carryover Survey

Articles

Calibration Verification Performance Relates to Proficiency Testing Performance (PDF, 153 K)

Evaluation of the Extent of Nonlinearity in Reportable Range Studies

Related Links

• Instrumentation Committee
• CAP Surveys/EXCEL Proficiency Testing
• Calibration Verification and Linearity Audio Conference