Days Set Up
Analytic Time

8 - 16 days

Soft Order Code

Test Updated:


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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


Test Usage

Diagnosis of GM1 gangliosidosis and Morquio B disease.

Reference Range

>=1.56 nmol/min/mg

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

Specimen Requirements

Collection Offsite

Collect specimen in a yellow top (ACD) tube. Send intact whole blood. Refrigerate; do not freeze. Specimens are accepted Monday through Thursday only and must be received by performing laboratory within 72 hours of collection.

Normal Volume
7 mL ACD whole blood
Minimum Volume
5 mL ACD 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.