| Ordering Code | 210 |
|---|---|
| Test Name | CA 19-9 |
| Alias | Cancer Ag 19-9 Carbohydrate Ag 19-9 Cancer Antigen - GI Centacor 19-9 |
| Preferred Specimen | Serum |
| Preferred Container | SST (Gold) |
| Other Specimen/Container | Plasma in EDTA, K2 (Lavender) Plasma in Lithium Heparin (Green) Plasma in Sodium Heparin (Green) |
| Optimum Volume | 0.5 mL |
| Transport Requirements | Oahu: Refrigerated Airline: Frozen Hawaii Airline Transport can be refrigerated during weekdays. |
| Specimen Stability | Ambient: 2 Hours Refrigerated: 5 Days Frozen: 3 Months |
| Rejection Criteria | Insufficient quantity, Wrong specimen type, Heat-inactivated sample, Sample stabilized with azide |
| Avail. Stat | NO |
| Analytic Time | 1 Day |
| Methodology | Electrochemiluminescence Immunoassay (ECLIA) |
Reference range(s)
The reference ranges listed below are valid on this date of June 29, 2025.
| Component | Age | Male Norm | Male Critical Low | Male Critical High | Female Norm | Female Critical High | Female Critical Low | Units | Add'l info |
|---|---|---|---|---|---|---|---|---|---|
| CA 19-9 | ALL | 0 - 35 | 0 - 35 | U/mL | This test was... Note1 |
Note1:
This test was performed on the Roche Modular E170
Electrochemiluminescence Immunoassay. Results obtained with different assay methods cannot be used interchangeably. Regardless of value, CA 19-9 levels should not be interpreted as absolute evidence of the presence or absence of malignant disease..