Days Set Up
Monday - Friday. Two runs per day; morning and afternoon.
Analytic Time

8 hours

MiChart Code
Hemoglobin A1c
Soft Order Code

Test Updated:


A1c Hemoglobin
Fast Hemoglobin
Glycated Hemoglobin
Glycosylated Hemoglobin
Hemoglobin, glycated
Hemoglobin, glycosated
Hemoglobin, glycosylated
Hgb A1c

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Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

Learn about how to properly label and where to ship specimens.

Order Kits and Supplies

MLabs provides all the supplies necessary for the collection of specimens.

Test FAQ

Visit our provider FAQ and learn about common questions to ordering tests.

Test Overview

Test Methodology

HPLC; primary method
Immunoassay; secondary backup method

Test Usage

To assess the status of glucose metabolism, evaluate control in diabetes mellitus.

Reference Range

Normal: 4.2 - 5.6%, Prediabetic: 5.7 - 6.5%, Diabetic: >6.5%. Target goal for a diabetic patient or therapy is <7.0%.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Specimen Requirements

Collection Offsite

Collect specimen in a lavender top tube. Fill completely. Invert specimen gently after collection to prevent clotting. Send intact specimen; do NOT centrifuge. Refrigerate.

Lavender Top Tube
Normal Volume
2 mL whole blood
Minimum Volume
2 mL whole blood

Billing Information

CPT Code
Pro Fee Code

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.