what is the difference between glucose and hemoglobin a1c

Glucose and Hemoglobin A1C (HbA1c) are both related to blood sugar levels, but they measure different aspects:

• Glucose: This is the sugar found in your blood that comes from the food you eat. It is the primary source of energy for your body's cells. Blood glucose levels can fluctuate throughout the day based on food intake, physical activity, and other factors.

• Hemoglobin A1C (HbA1c): This is a blood test that measures your average blood glucose levels over the past 2-3 months. It does this by measuring the percentage of hemoglobin (a protein in red blood cells) that is coated with sugar. Since red blood cells regenerate every 3 months, the A1C test provides a long-term view of blood sugar control.

Aspect Glucose Hemoglobin A1C (HbA1c)

What it measures Current blood sugar level Average blood sugar over 2-3 months
Timeframe Immediate (snapshot) Long-term (2-3 months)
Use Daily monitoring Diagnosing and monitoring diabetes

In summary, glucose gives you a snapshot of your blood sugar at a specific moment, while HbA1c provides an overview of your blood sugar control over a longer period.