Cancer Antigen 125 (CA-125)

CA-125 (Cancer Antigen) Test, Carbohydrate Antigen (CA-125) Test

What Affects the Test

Results of a cancer antigen 125 test can be affected by:

  • Medicines used to treat cancer.
  • A recent radioactive scan, such as a bone scan.
  • Belly surgery. The CA-125 test should be done at least 3 weeks after surgery.

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Author: Maria G. Essig, MS, ELSLast Updated: July 2, 2007
Medical Review: Adam Husney, MD - Family Medicine
Douglas A. Stewart, MD - Medical Oncology

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Topic Contents
 Test Overview
 Why It Is Done
 How To Prepare
 How It Is Done
 How It Feels
 Risks
 Results
Arrow PointerWhat Affects the Test
 What To Think About
 References
 Credits