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

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