The method that we use for measuring HbA1c has changed. This was due to a peninsula-wide procurement process for HbA1c and haemoglobin variant analysis. This change occurred on 2/8/2021. The new method (Sebia- capillary electrophoresis) produces results that are approximately 4% lower than on the previous HbA1c method (HPLC). Please take account of this when making comparisons between HbA1c values before and after this date. For example, a HbA1c of 60 mmol/mol measured before the change would be equivalent to 58 mmol/mol measured after the change. The results of our in-house method comparison are below:
| HbA1c Concentration (mmol/mol) | Number Tested: | Mean Bias (mmol/mol) | Mean bias (%) | |||
| Low: | 0 | to | 47 | 38 | -1.5 | -3.6 |
| Mid: | 48 | to | 59 | 22 | -2.2 | -4.3 |
| High: | 60 | to | 150 | 47 | -3.6 | -4.4 |
EDTA blood
% also IFCC mmol/mol Hb
See Below
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Local test
1 day
Can be added on to an existing request up to 2 days following sample receipt
Local test
In patients with an established diagnosis of Diabetes 30 days
Specimen Labelling Procedure
8210
