High fasting glucose and normal A1C: woman having a blood test at a clinic
A fasting glucose result is interpreted with A1C, test conditions and health history.

High Fasting Glucose but Normal A1C: Which Result Matters?

High fasting glucose can appear with a normal A1C because the tests measure different time windows. Learn which result to confirm and what to discuss next.

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Blood glucose meter and test strips illustrating iron deficiency and A1C comparison
Blood glucose testing supplies.

Iron Deficiency and A1C: Can Anemia Make the Result Look High?

Iron deficiency and A1C can complicate a blood sugar result. Learn when anemia may make A1C look high, which iron and glucose tests can help, and what to ask your clinician.

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Normal fasting glucose but high A1C results explained
Blood-glucose testing

Normal Fasting Glucose but High A1C: How Is That Possible?

A normal fasting-glucose result and an elevated A1C can appear contradictory. Learn what each test measures, why the results may disagree and what to discuss with your healthcare professional.

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A middle aged woman reviewing an A1C normal range laboratory result.
Understanding your A1C result can help guide practical blood-sugar decisions.

A1C Normal Range: Prediabetes and Diabetes Levels

A1C normal range results help show whether your average blood sugar is normal, in the prediabetes range or in the diabetes range. Learn what the numbers mean, why tests can disagree and what to do next.

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