A1C
Also known as: HbA1c, Hemoglobin A1c
A blood test measuring average blood sugar over the past 2–3 months.
The A1C test measures what percentage of your hemoglobin — a protein in red blood cells — is coated with sugar (glycated). Because red blood cells live about 3 months, an A1C result reflects your average blood glucose over that entire period, not just a single moment.
For most adults with diabetes, the American Diabetes Association recommends an A1C target below 7%. Higher targets (under 8%) may be appropriate for older adults or those with complex health situations. Lower targets may apply to younger patients with Type 1 diabetes who can safely achieve them.
A1C does NOT replace daily glucose monitoring. A person can have a 'normal' A1C while still experiencing dangerous highs and lows that average out. CGM data and daily meter readings give the real-time picture that A1C cannot.
Frequently asked
What is A1C?
A blood test measuring average blood sugar over the past 2–3 months. The A1C test measures what percentage of your hemoglobin — a protein in red blood cells — is coated with sugar (glycated). Because red blood cells live about 3 months, an A1C result reflects your average blood glucose over that entire period, not just a single moment.
How does A1C relate to Medicare coverage?
Medicare Part B covers most durable medical equipment related to A1C. Contact us to verify your specific coverage for related diabetic supplies.
Where can I get diabetic supplies related to A1C in Phoenix?
We deliver Medicare-covered diabetic supplies throughout the Phoenix metro area. Call us or complete the form above to verify your coverage.