Monoclonal Protein Identification
ACCREDITATION STATUS:
UKAS accredited proficiency testing provider No. 7795
CLINICAL APPLICATION:
Diagnosis of monoclonal gammopathy in serum and urine
PURPOSE OF PROGRAMME:
Oncology EQA scheme
ANALYTES:
Analyte | Default Unit |
---|---|
Albumin | |
free light chains (kappa and lambda and ratio) | |
IgA | |
IgG | |
IgM | |
Total serum protein | Isotype of heavy and light chain together with the concentration of monoclonal protein in g/L. Serum free light chains in mg/L |
urine total protein & Monoclonal Component Quantitation | |
urine total protein & monoclonal component quantitation |
Each distribution will contain a serum sample and a urine sample, they should be considered as separate requests for investigation. It should NOT BE ASSUMED that they emanate from the same patient
MATERIAL PROVIDED: Liquid format. Normal and pathological human serum and urine
DISTRIBUTIONS PER YEAR: 6
SAMPLES PER DISTRIBUTION: 2 (1 urine and 1 serum)
FREQUENCY OF DISTRIBUTION: Every two months as outlined in the Distribution Schedule
PROGRAMME OF ANALYSIS:
Data entry is via the web for the submission of results. Data analysis is commenced 21 days after sample dispatch. Late returns are accepted and will contribute to the laboratory's cumulative performance statistics
DATA ANALYSIS:
Whilst the programme will analyse participant's isotype identification and monoclone quantitation, the returns will require data on total serum protein, albumin, IgG, IgA, IgM (and urine total protein). This latter information will not be formally analysed as it is covered in other EQA programmes but will be of value in the recognition of analytical or isotype identification problems Chosen Coefficient of Variation: 30% for FLC Chosen Coefficient of Variation: 15% for Monoclonal Component Quanti
PERFORMANCE SCORING:
MI Scoring - The qualitative elements of electrophoresis and isotype identification MRVIS - Assessment of the monoclone quantitation and free light chains
PERFORMANCE MONITORING:
The qualitative elements of electrophoresis and isotype identification are assessed by MI scoring over a running analytical window of 6 Distributions (12 months) An MIS for any one interpretative component of 2 or more is classified as
PERSISTENT POOR PERFORMANCE:
Defined as being in the Poor Performance category for two or more successive Distributions
Immunology, Immunochemistry & Allergy (IIA)
The External Quality Assessment Scheme for Immunology, Immunochemistry & Allergy (IIA) was founded in 1982 by Dr Anthony Milford Ward at Northern General Hospital, Sheffield. In 1982 the Service became known as the UK National External Quality Assessment Service for Immunology, Immunochemistry & Allergy. UK NEQAS IIA is part of the Sheffield Teaching Hospitals NHS Foundation Trust. For the most up-to-date scheme information (including any pilot schemes) please contact the centre directly.
Contact Details
- UK NEQAS Immunology, Immunochemistry & Allergy
- Sheffield Teaching Hospitals NHS Foundation Trust
- PO Box 894
- Sheffield
- S5 7YT
Immunology, Immunochemistry & Allergy (IIA)
- Telephone: +44 (0) 114 271 5715
- Email: ukneqas@immqas.org.uk
- Web: https://www.immqas.org.uk/