Days Set Up
Monday - Friday
Analytic Time

2 - 3 days

MiChart Code
Cancer Antigen 27.29
Soft Order Code

Test Updated:


Breast Carcinoma Associated Antigen 27.29
Cancer Antigen 27.29

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

Chemiluminometric Immunoassay

Test Usage

May be useful for predicting early recurrence of disease in women who have been treated for carcinoma of the breast. FDA approved for serial testing in women with prior stage II or III breast cancer who are clinically free of disease. This test should be used in conjunction with other clinical methods used for the early detection of recurrence.

Reference Range

Reference values have not been established for patients that are less than 18 years of age. Female: < or = 38 U/mL; Male: < or = 38 U/mL (use not defined).

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

Specimen Requirements

Collection Onsite

This test is not available to University of Michigan registered patients. CA 15-3 will be automatically substituted.

Collection Offsite

Collect specimen in a red top or SST tube. Centrifuge within 2 hours of collection, aliquot serum into a plastic vial and freeze.

Yellow Top Tube
Normal Volume
0.5 ml serum
Minimum Volume
0.25 ml serum

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.