Above the range
Common causes of a high CA-125
- Ovarian cancer (monitoring)
- Endometriosis or pelvic inflammatory disease
- Pregnancy or menstruation
- Peritoneal irritation
All tests · Tumor Markers · CA-125
Above the range
What causes a high CA-125?
Normal range < 35 U/mL (< 35 kU/L SI). Specimen: Serum. See the full CA-125 reference page for critical values and nursing considerations.
What is the normal range for CA-125?
The standard teaching reference range for CA-125 is < 35 U/mL in conventional units, or < 35 kU/L in SI units. This value is measured in serum.
| Specimen | Serum |
|---|---|
| Conventional range | < 35 U/mL |
| SI range | < 35 kU/L |
| Panel | Tumor Markers |
Full details, including nursing considerations, on the CA-125 normal range page. Reference ranges vary by laboratory, method, age, sex, and population - always use the range printed on the actual result.
Same panel