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CA 15-3 (breast tumor marker)

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CA 15-3 (breast tumor marker)

Accredited Facility E-report Qualified Specialists

This test is done to measure CA 15-3, a protein that can be elevated in breast cancer, particularly in advanced or metastatic disease. It is primarily used to monitor treatment response and detect recurrence rather than for screening or early diagnosis. Levels may also rise in some benign conditions.

  • If monitoring known breast cancer.
  • If assessing response to breast cancer treatment.
  • If checking for possible recurrence.
  • If a healthcare provider is following up metastatic disease.
  • Fasting: Not required.
  • No special preparation is usually needed.
  • Inform your healthcare provider about current cancer treatments.
  • Follow any instructions provided by the laboratory or healthcare provider.
    • CA 15-3 (breast tumor marker)
    No labs currently offering this test.