what is the difference between blood glucose and a1c

Blood glucose and A1C are both measures of blood sugar levels, but they provide different types of information:

• Blood Glucose: This measures the amount of sugar in your blood at a specific moment in time. It can be checked using a blood glucose meter, and the results can vary throughout the day based on food intake, exercise, and other factors.

• A1C (Hemoglobin A1C): This test measures your average blood sugar levels over the past 2-3 months. It reflects the percentage of hemoglobin in your red blood cells that has glucose attached to it. A1C is used to diagnose prediabetes and diabetes and to monitor long-term blood sugar control.

Aspect Blood Glucose A1C

Time Frame Instant snapshot 2-3 month average
Measurement mg/dL Percentage (%)
Purpose Daily monitoring Long-term diabetes management

Both tests are important for managing diabetes, but they serve different purposes. Blood glucose helps with daily adjustments, while A1C provides a broader picture of blood sugar control over time.