CA-125
This test measures the amount of a protein called CA-125 (cancer antigen 125) in a sample of your blood.
CA-125 is a type of tumor marker. Tumor markers are substances that are often made by cancer cells or by normal cells in response to cancer.
Measuring certain tumor markers often help health care providers treat cancer.
Source: MedlinePlus, U.S. National Library of MedicineNormal range
Result tiers from clinical guidelines, not a single normal band.
| Source | Sex | Age | Range |
|---|---|---|---|
| American Board of Internal Medicine (Laboratory Test Reference Ranges) | All | all ages | <35 U/mL |
| ARUP Laboratories Test Directory | All | all ages | <38 u/mL |
- Sample
- Serum or plasma · LOINC
- Listed under
- Ovarian Cancer
- Code
- LOINC 10334-1 · U/mL
- Also called
- Cancer Ag 125
See your own CA-125 Upload a lab PDF and it is drawn against your lab's range, over time. Free, no account. Upload a Blood Test
On iPhoneScan the paper report, a Live Activity while it is read, Apple Health beside your markers. The same account. App Store