Reviewed September 5, 2026 by the LabCoupons Editorial Team

A1C and Diabetes Testing: What It Costs and What the Number Means

The A1C test reflects average blood sugar over roughly the previous three months, which makes it more stable than a single glucose reading. It is the standard test for screening and monitoring diabetes and prediabetes. A fasting glucose test and an oral glucose tolerance test answer related questions but measure a single point in time. Because these tests are common, cash prices are usually reasonable, though ordering all three when one would do is a common way to overspend. This guide explains the difference and how to price each option.

Key Takeaways

  • A1C estimates average blood sugar over about two to three months.
  • Fasting glucose measures one point in time and is often ordered alongside A1C.
  • Prediabetes and diabetes are defined by thresholds, but a clinician makes the diagnosis.
  • A1C does not require fasting, while a fasting glucose test does.
  • Order the test that matches the question rather than paying for every diabetes test at once.
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Frequently Asked Questions

Do I need to fast for an A1C test?

No. The A1C test does not require fasting. A fasting glucose test does, so follow the preparation note on your order.

What A1C level indicates diabetes?

Common thresholds are below 5.7 percent for normal, 5.7 to 6.4 percent for prediabetes, and 6.5 percent or higher for diabetes, but a clinician confirms any diagnosis.

How often should A1C be checked?

People with diabetes often check it twice a year or more. Those with prediabetes may check yearly, depending on clinician advice.

Can I order an A1C test myself?

Yes. Direct-access testing lets you order A1C online and collect the sample at a local site without a referral.

Sources

Reviewed by the LabCoupons Editorial Team

Our team researches and fact-checks all content to ensure accuracy. We update pricing guides regularly to reflect current test options, self-pay rates, and laboratory accreditation standards.

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