Days Set Up
Analytic Time

7 - 14 days

MiChart Code
Soft Order Code

Test Updated:


Looking to order a test?

We’ve provided helpful links to make ordering easy.

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

Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)

Test Usage
Reference Range

See interpretive report

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

Specimen Requirements


Must be collected at a draw site at University Hospital

Collection Onsite

Collect in EDTA tube. Send to Specimen Processing in a green bag. Specimen needs to be spun in the cold centrifuge, aliquotted into a plastic screw capped tube and frozen.

Collection Offsite

Test must be collected on site at University Hospital. Requires centrifugation in a cold centrifuge which are not located at off site labs.

Normal Volume
0.5 mL plasma
Minimum Volume
0.2 mL plasma

Billing Information

CPT Code
Pro Fee Code

Have More Questions?

Explore our helpful billing resources:

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.