Cancer Antigen (CA) 15-3
Also known as: CA 15-3
Use
Quantitative measurement of cancer antigen 15-3
Special Instructions
Not provided.
Limitations
The CA 15-3 assay value, regardless of level, should not be interpreted as absolute evidence for the presence or absence of malignant disease. The CA 15-3 assay should be used in conjunction with clinical evaluation and other diagnostic procedures. Variability between methods implies that results from different assays or laboratories may not be comparable. High-dose biotin usage may interfere with test accuracy.
Methodology
Immunoassay (ECLIA)
Biomarkers
Cancer Antigen 15-3
Protein
LOINC Codes
- 6875-9 - Cancer Ag15-3 SerPl-aCnc
- 6875-9 - Cancer Ag15-3 SerPl-aCnc
Result Turnaround Time
1 day
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
1 mL
Minimum Volume
0.7 mL
Container
Gel-barrier tube (preferred) or red-top tube
Collection Instructions
If a red-top tube is used, transfer separated serum to a plastic transport tube.
Patient Preparation
Patients should stop biotin consumption at least 72 hours before specimen collection.
Storage Instructions
Store at room temperature.
Causes for Rejection
Citrate plasma specimen; improper labeling
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 14 days |
| Refrigerated | 14 days |
| Frozen | 14 days |
Other tests from different labs that may be relevant