1. What is A1C?

A1C (glycated hemoglobin) reflects average blood glucose levels over the past 2-3 months. It's a crucial marker for diabetes diagnosis and management.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( eAG \) — Estimated Average Glucose (mg/dL)

Explanation: This formula converts average glucose levels to the A1C percentage used in diabetes care.

3. Importance of A1C Measurement

Details: A1C provides a more comprehensive picture of blood glucose control than single glucose measurements and correlates with diabetes complications risk.

4. Using the Calculator

Tips: Enter your average glucose level in mg/dL. The value must be greater than 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the normal A1C range?
A: Normal is below 5.7%, 5.7%-6.4% indicates prediabetes, and 6.5% or higher suggests diabetes.

Q2: How often should A1C be tested?
A: Diabetics typically every 3-6 months; prediabetics annually; normal individuals every few years.

Q3: Can A1C be inaccurate?
A: Yes, conditions like anemia, kidney disease, or hemoglobin variants can affect accuracy.

Q4: What's the difference between A1C and eAG?
A: A1C is a percentage reflecting long-term control, while eAG is in mg/dL representing average glucose.

Q5: Why convert between A1C and eAG?
A: Helps patients understand their average glucose levels in more familiar units.