Days Set Up
Test must be scheduled by Transplant Coordinator 2 weeks prior to collection, with Johns Hopkins lab staff at phone number (410)955-3600.
Analytic Time

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

Flow cytometric crossmatch.

Test Usage
Reference Range

Interpretive report provided.

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

Specimen Requirements

ACD tubes (Donor) and Red top tube (Recipient)
Normal Volume
Four ACD tubes from the Donor and One Red top tube from the recipient (HLA may have stored serum that can be used instead)
Minimum Volume

Billing Information

CPT Code
Pro Fee Code
Insurance Auth Info

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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.