Glycolated Haemoglobin (HbA1c)
Last updated 03.11.12
- Indicator of level of control
- May be used as Dx of DM2: >6.5%
- Not sensitive but very specific
- Not appropriate in pts w haemoglobinopathies, recent blood loss/transfusion
- Normal 4-6%
- Target <7% in DM
- Fair control 7.1 – 7.9%
- Poor control 8 – 9.9%
- Very poor control >9.9%
- Falsely high
- Increased RBC life: B12 or folate def..
- Falsely low
- Reduced RBC life: G6PD def., Sickle cell, anaemia..