Coeliac Disease Antibodies
ACCREDITATION STATUS:
UKAS accredited proficiency testing provider No. 7795
CLINICAL APPLICATION:
Diagnosis of Coeliac Disease
PURPOSE OF PROGRAMME:
Autoimmunity EQA scheme
ANALYTES:
| Analyte | Default Unit |
|---|---|
| IgA/G Deamidated Gliadin Peptide (DGP) antibodies | Positive or Negative, U/mL, or titre as appropriate |
| IgA/G endomysial antibodies | Positive or Negative, U/mL, or titre as appropriate |
| IgA/G Gliadin Antibodies | Positive or Negative, U/mL, or titre as appropriate |
| IgA/G tissue transglutaminase antibodies (TTG) | Positive or Negative, U/mL, or titre as appropriate |
MATERIAL PROVIDED: Liquid format. Normal and pathological human serum
DISTRIBUTIONS PER YEAR: 6
SAMPLES PER DISTRIBUTION: 1
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:
Qualitative responses are recorded for each analyte and assessed in relation to the designated response. Reports show method or kit related statistics in terms of Method Laboratory Trimmed Mean (MLTM) and range of results reported
PERFORMANCE SCORING:
MI scoring for all analytes for which the laboratory is registered
PERFORMANCE MONITORING:
Laboratory performance is assessed over a running analytical window of 6 Distributions (12 months) A MIS of 2 or more for any analyte will also be classified as poor performance
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/