Advantages of HbA1c for Diabetes Diagnosis
- No fasting necessary
- Sample may be obtained any time of the day
- Extremely low intra-individual variability (CV < 1%)
- HbA1c is stable in sample material
- Not altered by acute factors e.g., stress, exercise
- Reflects long-term blood glucose concentration (8-12 weeks)
- Assay standardized across instruments (only DiaSys)
- Single sample
- Used to guide treatment
- Predicts the development of complications