Cancer / Screening
Also known as: CA-Breast, Cancer Antigen-Breast
No common urgent flag from this test alone
This test checks for a protein in your blood. It's called CA 15-3. Healthy breast cells make this protein. But, people with breast cancer can have high levels of it.
Your doctor orders this test to see if your breast cancer treatment is working. It also helps them check if the cancer has come back after treatment.
Reference ranges for CA 15-3 can vary between different laboratories and may depend on factors like age and clinical context. Always refer to the specific range provided by your lab.
Clinical Reference
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Educational purposes only — This information is not a substitute for professional medical advice, diagnosis, or treatment. Always discuss your lab results with your healthcare provider.