The Real Meaning of an A1C vs Fasting Glucose Gap
A1C vs fasting glucose can point opposite ways and both be correct. A fasting 126 mg/dL meets the diagnostic threshold on its own.
HbA1c
What to Do First When Your A1C Doesn’t Match Your Meter
A1C doesn't match your meter? FDA requires your own device's real accuracy figures on the box you already own, and a persistent gap is worth reporting.
An A1C 6.5 or Higher Opens Care That Is Easily Overlooked
A1C 6.5 or higher opens a Medicare education benefit fewer than 5% of beneficiaries use in their first year. Most are never told it exists.
Better to Ask Than Guess Whether You Fast for an A1C Test
Do you fast for an A1C? No — and fasting you weren't asked to do can change how a glucose result drawn from the same needle gets read.
How Accurate Is the A1C Test Your Lab Already Verified
A1C test accuracy is not one number: about 7% of people worldwide carry a hemoglobin variant, and only some assay methods are affected by it.
A Normal A1C Level and What It Really Settles
A normal A1C level is below 5.7%. About 7% of the world carries a hemoglobin variant that can shift the number without the blood sugar moving.
The Right Way to Read Every Row of an A1C Chart
A1C chart numbers do two different jobs. 5.7 and 6.5 diagnose; 7.0 is a target for someone already diagnosed. The same 6.5 sits on both lists.
How to Read Your A1C Result and Its Honest Margin
Your A1C is a measurement, and measurements carry a margin. A result reported as 6.8% can come back between 6.4% and 7.2% on the same blood sample.