Scheme Information Sheets
UK NEQAS for Glycated Haemoglobins
Scheme Particulars | Indicative Details |
---|---|
Accreditation body | UKAS |
ISO/IEC Accreditation status | ISO/IEC 17043:2023 |
UKAS Accredited Proficiency Testing Provider No | 7860 |
Objective of Scheme | Provides EQA coverage for the diagnosis and monitoring of diabetes. This Scheme is designed for laboratory HbA1c analysers, we have a POCT HbA1c Scheme for POCT users |
Pre-, Analytical, Post- status | Analytical |
Number of distributions per year (nominal) | 11 |
Specimens per distribution | 3 |
Number of Specimens per annum | 33 |
Frequency of distribution | Monthly |
Scoring system | ABC |
Material distributed | Human whole blood or human washed cells suspended in human plasma |
Programme Director(s) / Organiser(s) | Finlay MacKenzie |
Criteria for participation | All, but overseas by courier |
Nominal sample volume (mL) | 0.4 |
Sample presentation TACs | All analytes in the same tube |
Data in Chemistry on-line Dashboard | Yes |
Analyte | Approx Range | Default Units | Target Value | B Score Limit (%) | C Score Limit (%) |
---|---|---|---|---|---|
HbA1c [DCCT] | 4 – 14 | % | ALTM | 5.0 | 5.0 |
HbA1c [IFCC] | 20 – 110 | mmol/mol | ALTM | 7.5 | 7.5 |
Abbreviation | Expansion |
---|---|
ALTM | All Laboratory Trimmed Mean |
GLTM | Group Laboratory Trimmed Mean – which is the Method Principle Mean |
MLTM | Method Laboratory Trimmed Mean – usually a manufacturer system / analyser mean |
XALTM | An external value that may be from a Reference Method System |
OGLTM | A Method Principle Mean used as the target for all laboratories |
OMLTM | A specific Method Mean used as a target for all laboratories |
MED | Median |