Above the range
Common causes of a high CA 19-9
- Pancreatic cancer
- Biliary obstruction / cholangitis
- Other GI malignancies
All tests · Tumor Markers · CA 19-9
Above the range
What causes a high CA 19-9?
Normal range < 37 U/mL (< 37 kU/L SI). Specimen: Serum. See the full CA 19-9 reference page for critical values and nursing considerations.
What is the normal range for CA 19-9?
The standard teaching reference range for CA 19-9 is < 37 U/mL in conventional units, or < 37 kU/L in SI units. This value is measured in serum.
| Specimen | Serum |
|---|---|
| Conventional range | < 37 U/mL |
| SI range | < 37 kU/L |
| Panel | Tumor Markers |
Full details, including nursing considerations, on the CA 19-9 normal range page. Reference ranges vary by laboratory, method, age, sex, and population - always use the range printed on the actual result.
Same panel