The Viapath Biochemistry laboratory at Guy’s & St. Thomas’ will be moving to a new method for measuring HbA1c in Spring 2021 - the Roche turbidimetric inhibition immunoassay (TINIA).
The laboratory has performed a thorough investigation and have confirmed that the technology is appropriate for use in our local population. Reference ranges and interpretation of results will not change; however we will be reporting HbA1c in mmol/mol units only moving forward.
More information can be found by click the links to the relevant documents . These include:
An introduction to the project, user letter 1
A Laboratory Pocket Guide to HbA1c analysis
A useful HbA1c unit conversion table
A follow up communication , user letter 2