Days Set Up
Monday - Friday
Analytic Time

2 - 4 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

Quantitative genotyping of cell free DNA (cfDNA)

Test Usage

Used to monitor acute cellular rejection of transplanted hearts

Reference Range

Low Risk: Donor Fraction <0.32% of total cfDNA

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

Specimen Requirements

Collection Offsite

Cannot be collected off site

Normal Volume
17 mL EDTA PPT tubes (2 x 8.5 mL tubes) based on patient weight
Minimum Volume
8.5 mL EDTA PPT tube (1 tube)

Billing Information

CPT Code
Pro Fee Code

Have More Questions?

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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.