1. What is Hemoglobin A1c?

Hemoglobin A1c (HbA1c) is a form of hemoglobin that is chemically linked to glucose. It provides a three-month average of blood glucose levels and is a crucial marker for diabetes management and diagnosis.

2. How Does the Calculator Work?

The calculator uses the HbA1c conversion formula:

Where:

• \( eAG \) — Estimated Average Glucose (mg/dL)
• 46.7 and 28.7 — Conversion constants

Explanation: This formula converts average blood glucose levels measured in mg/dL to the corresponding HbA1c percentage value.

3. Importance of HbA1c Measurement

Details: HbA1c testing is essential for diabetes diagnosis, monitoring long-term glucose control, and assessing the risk of diabetes-related complications.

4. Using the Calculator

Tips: Enter your average blood glucose level in mg/dL. The value must be a positive number greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What is a normal HbA1c level?
A: Normal HbA1c levels are below 5.7%. Levels between 5.7% and 6.4% indicate prediabetes, and 6.5% or higher indicates diabetes.

Q2: How often should HbA1c be tested?
A: People with diabetes should typically have their HbA1c tested every 3-6 months, depending on their treatment plan and glucose control.

Q3: Can HbA1c be inaccurate in certain conditions?
A: Yes, conditions like anemia, hemoglobin variants, kidney disease, or recent blood loss can affect HbA1c accuracy.

Q4: What's the difference between HbA1c and daily glucose monitoring?
A: Daily glucose monitoring shows immediate blood sugar levels, while HbA1c provides a long-term average of glucose control over 2-3 months.

Q5: How can I lower my HbA1c level?
A: Through consistent medication adherence, healthy eating, regular physical activity, weight management, and regular glucose monitoring.