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The CA 15-3 Test measures cancer antigen 15-3 levels in blood, often used to monitor breast cancer treatment and progression. Elevated levels may suggest advanced breast cancer, metastasis, or recurrence, while non-cancer conditions can also affect results. Doctors order this test alongside imaging and other labs to track therapy response or detect changes in disease status. Results help guide ongoing management of breast cancer and patient care.
The CA 27.29 Test measures cancer antigen 27.29 levels in blood to help monitor breast cancer treatment, progression, or recurrence. Elevated levels may indicate advanced or metastatic breast cancer, though non-cancer conditions can also affect results. Doctors order this test alongside imaging or other tumor markers to track therapy response. Results provide valuable insight for ongoing breast cancer management and long-term patient care.