LabCorp Test

Cancer Antigen (CA) 15-3 Blood Test

Quick Overview

CA 15-3 may be used to monitor a person's response to breast cancer treatment and to help watch for breast cancer recurrence.

Test #143404


Availability: In stock

Also Known As CA 15-3, CA-Breast; Cancer Antigen-Breast
Preparation No fasting required. Stop biotin consumption at least 72 hours prior to the collection.
Test Results 1-2 days. May take longer based on weather, holiday or lab delays.

Ca 15-3 is a blood test used to monitor for the recurrence and the spread of breast cancer. An elevated CA 15-3 level suggests the spread or recurrence of breast cancer. This test is often used with CA 125 and CEA. This is not a test used to screen for breast cancer.

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