HbA1c (Glycated Haemoglobin)

Key Aspects of the HbA1c Test:

• Purpose: Monitors chronic glycemic control, diagnoses prediabetes and type 1 or 2 diabetes, and assesses treatment effectiveness.
• Mechanism: Glucose attaches to hemoglobin in red blood cells. Since these cells live for roughly 120 days, the test reflects average glucose levels over this period.
• No Preparation: The test does not require fasting and can be performed at any time of the day.

Clinical Relevance:

• Monitoring Frequency: For diabetes, it is typically measured every 3 to 6 months.
• Target Levels: Generally, a target of 7% or less is recommended for individuals with diabetes, though this may vary based on personal health goals.
• Clinical Significance: High HbA1c levels directly correlate with higher risks of diabetes-related complications, including heart disease and nerve damage.

Estimated Average Glucose (eAG) is a calculation that translates your 2-3 month A1C test result into the exact same mg/dL or mmol/L units you see on daily finger-stick monitors. It gives a broader, long-term picture of your overall metabolic control and diabetes management.