Simple Clinical Meaning
A diagnostic gold-standard blood test that reflects average plasma glucose concentrations over the preceding 8 to 12 weeks (the approximate lifespan of red blood cells).
Detailed Clinical Explanation
HbA1c measures the percentage of hemoglobin molecules bound to glucose. It does not require fasting and provides an accurate, long-term picture of glycemic control:
- Normal (Non-Diabetic): Below 5.7%
- Prediabetes: 5.7% to 6.4%
- Diabetes Diagnosis: 6.5% or higher on two separate tests
- Therapeutic Target for Most Diabetic Adults: Under 7.0% (individualized according to clinical guidelines)
The information provided on this website is for educational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition.