Days Set Up
Monday - Thursday, 8:00am - 4:30pm; Friday 8:00am - 10:00am
Analytic Time

3 - 10 days

MiChart Code
HLA Crossmatch EP
Soft Order Code

Test Updated:


HLA Crossmatch Endothelial Precursor
Endothelial Precursor, Donor
Endothelial Precursor Flow Crossmatch, Donor

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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

Flow Crossmatch

Test Usage

This test may be diagnostically useful for post-transplant patients who appear to be undergoing humoral graft rejection but have no history of donor specific anti-HLA antibodies. This assay is also recommended for risk assessment of highly sensitized recipients previously exposed to a vascularized tissue like a previous transplant or vascular reconstruction surgeries.

Reference Range

Interpretive report provided.

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

Specimen Requirements


Collect specimen in sufficient yellow top (ACD) solution A tubes from donor. Send intact specimen at room temperature. Do not refrigerate or freeze. For recipient specimen please refer to Solid Organ Transplant, Endothelial Precursor Cell (Recipient).

Yellow Top Tube
Red Top Tube
Normal Volume
40 mL ACD (solution A) whole blood
Minimum Volume
30 mL ACD (solution A) 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.