Library/Blood sugar/HbA1c/4.5%

A1C of 4.5%What it means, and the average glucose behind it

4.5% A1C
Below the prediabetes range
4%5.7%6.5%10%

An A1C of 4.5% is under 5.7%, where the American Diabetes Association puts a typical A1C. It works out to an average glucose of about 82 mg/dL (4.6 mmol/L).

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A1C4.5%
In mmol/mol26
Average glucose82 mg/dL4.6 mmol/L
Where 95% of people sat76 to 120 mg/dLADAG study

What usually happens next

If you have no risk factors, the ADA suggests screening from age 35 and repeating about every 3 years.

If you have risk factors (overweight, a family history, high blood pressure, past gestational diabetes), your clinician may test more often.

When an A1C can read wrong

A1C counts sugar stuck to red blood cells over their roughly three-month life, so anything that changes how long those cells live can move it without your glucose changing: anaemia, iron deficiency, kidney disease, pregnancy, a recent blood transfusion, and some haemoglobin variants. If your A1C and your glucose readings don't agree, that's usually why, and a fasting glucose or fructosamine can settle it.

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Nearby results

Questions

Is an A1C of 4.5% good?

Yes: 4.5% is under 5.7%, the line the ADA uses for a typical A1C. It's one number, read with your fasting glucose and risk factors.

What average blood sugar is an A1C of 4.5%?

About 82 mg/dL (4.6 mmol/L). In the ADAG study, 95% of people with this A1C had an average between 76 to 120 mg/dL.

What is 4.5% in mmol/mol?

26 mmol/mol. Many countries print A1C in mmol/mol (the IFCC unit) rather than percent.

Worked out by LifeFrom from the ADA standards and the ADAG study, and not yet reviewed by a clinician. For your own understanding: only a lab test, read by your clinician, diagnoses anything.