Days Set Up
Monday - Friday, 8:00am - 5:00pm
Analytic Time

24 hours

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

Histology diagnosis

Reference Range

Results interpreted by pathologist

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

Specimen Requirements

Collection Offsite

Submit fresh tissue or tissue fixed in phosphate buffered formalin. All biopsy specimens should be placed in 10% buffered neutral formalin immediately upon removal, except for samples for frozen section, examination prior to fixation, photography, or per instructions for special laboratory procedures. For additional information consult the MLabs Client Services Center regarding appropriate handling of the specimen and fixation prior to collection of specimen. The name of the responsible staff physician must be on the request form, legibly written. Tissue fixed in formalin CANNOT be used for microbiological culture, electron microcopy, and certain types of histochemistry requiring frozen sections. Slides from outside the University Hospital must be accompanied by letter or pathologist's report from the outside institution. All specimens of any type must be accompanied by the appropriate requisition form containing the patient's complete name, social security or medical record number, test(s) required, requesting physician's name, and pertinent clinical history.

Red Top Tube
Normal Volume
Entire specimen
Minimum Volume
Entire specimen

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.