Can anaemia affect HbA1c test results?

Yes, anaemia can affect HbA1c results. Since the test measures glycated haemoglobin, any condition that impacts red blood cells, like anaemia, can alter the accuracy of the result. For example, in iron-deficiency anaemia, where red blood cells live longer, HbA1c may be falsely elevated. Conversely, in conditions where red blood cells are destroyed more quickly, HbA1c levels may be falsely low. If you have a history of anaemia or any blood disorders, inform your doctor before taking the test so they can interpret the results appropriately.