Days Set Up
Monday, Wednesday, Friday
Analytic Time

3 - 6 days

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


Test Usage

Monitoring of compliance utilizing Tramadol

Reference Range

Cutoff: 25 ng/mL

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

Specimen Requirements


No preservative

Collection Onsite

Collect specimen in a plastic cup. Send to Specimen Processing

Collection Offsite

Collect specimen in a plastic cup. Send entire specimen, or aliquot into a plastic tube, and send to Specimen Processing refrigerated.

Normal Volume
2 mL urine
Minimum Volume
0.1 mL urine

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.