ACCREDITATION STATUS:

UKAS accredited proficiency testing provider No. 7795

CLINICAL APPLICATION:

Diagnosis of Hereditary Angioedema and monitoring of complement activation

PURPOSE OF PROGRAMME:

Immunochemistry EQA scheme

ANALYTES:

PROGRAMME OF ANALYSIS:

Data entry is via the web for the submission of results. Data analysis is commenced 28 days after sample dispatch. Late returns are accepted and will contribute to the laboratory's cumulative performance statistics

DATA ANALYSIS:

All Laboratory Trimmed Mean (ALTM) with truncation at 2SD, SD, and CV%. Reports also show method and manufacturer specific statistics. Individual laboratory performance is expressed in terms of MRBIS, SDBIS, and MRVIS. The Designated Value (DV) for calculation of VI is the Method Laboratory Trimmed Mean (MLTM) Chosen Coefficient of Variation is 10%

PERFORMANCE SCORING:

MRVIS

PERFORMANCE MONITORING:

Laboratory performance for the qualitative element of the Scheme is assessed over a running analytical window of 4 Distributions (12 months) Individual laboratory performance over a running analytical window of 4 Distributions (12 months) quantitation is expressed in terms of MRBIS, SDBIS and MRVIS

PERSISTENT POOR PERFORMANCE:

Defined as being in the Poor Performance category for two or more successive Distributions