Breast Cancer

Breast Cancer Lab Tests and health information

Order our breast cancer tests to screen for blood markers CA 15.3, CA 27.29, and CEA (carcinoembryonic antigen) that together may detect the presence of breast cancer. Take control and learn about your health with Ulta Lab Tests.


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If you're reading this article as an American woman, we have a sobering statistic to share with you. Your chances of developing breast cancer at some point in your life stand at 1 in 8.

Breast cancer is the most common cancer American women are likely to develop. This highlights the utmost importance of breast cancer tests. They can screen, diagnose, and monitor breast cancer.

What's the gold standard of breast cancer screening? What are the best lab tests to use? Let's take a look at what's available.

Lab Tests for Breast Cancer

Lab tests for breast cancer identify levels of different substances in the blood. In detecting breast cancer, the three following tests are significant:

CA 15-3

Cancer antigen 15-3 is always naturally present in the blood. However, if levels are increased, this can show the presence of cancer. It is also helpful in monitoring breast cancer after treatment.

CA 27.29

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