The CA 15-3 test is a blood test that measures the level of CA 15-3 protein in the blood. CA 15-3 is a protein produced by cells in response to changes occurring in the body, and it is considered a tumor marker because high levels of the antigen may indicate certain cancers, including breast cancer
Uses of the CA 15-3 Tumor Marker Test
The CA 15-3 tumor marker test is used to monitor response to breast cancer treatment and disease recurrence
Interpreting the Results
CA 15-3 levels are higher than normal in most women with breast cancer that has spread to other parts of the body (called metastatic breast cancer). However, not all types of breast cancer will cause CA 15-3 levels to rise, as some types of cancer cells don’t over-produce the antigen
Conclusion
The CA 15-3 tumor marker test is an important tool for monitoring response to breast cancer treatment and disease recurrence. At our laboratory, we offer accurate and reliable CA 15-3 tests to aid in the diagnosis and management of breast cancer. Contact us today to learn more about our CA 15-3 test and how we can assist in your cancer care.