what's the difference between glucose and a1c

Glucose and A1C 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 provides energy to your cells. Blood glucose levels can fluctuate throughout the day based on meals, exercise, and other factors. A blood glucose test measures your blood sugar at a single point in time.

• A1C (Hemoglobin A1C): This test measures your average blood sugar levels over the past 2-3 months. It does this by measuring the percentage of hemoglobin (a protein in red blood cells) that has glucose attached to it. The A1C test is used to diagnose prediabetes and diabetes and to monitor how well blood sugar is being managed over time.

Aspect Glucose A1C

What it measures Current blood sugar level Average blood sugar over 2-3 months
Timeframe Single point in time Long-term (2-3 months)
Purpose Immediate blood sugar monitoring Diagnose and monitor diabetes

In summary, glucose tests give you a snapshot of your blood sugar at a specific moment, while A1C provides a broader picture of your blood sugar control over time.