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Cancer Antigen 15-3 (Bayer)
MessageFor Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.
Test Code
C153
Alias/See Also
5819;
CA 15-3;
CA 15-3;
CPT Codes
86300
Preferred Specimen
serum
Minimum Volume
1 mL
Instructions
Avoid hemolysis. Allow to clot in an upright position for 30 minuties. Centrifuge 10 minutes. Keep tightly stoppered.
Transport Container
Original tube preferred, may be sent in a screw-top transfer tube.
Transport Temperature
Refrigerated
Specimen Stability
Room Temperature = 8 hours
Refrigerated = 3 days
Frozen = n/a
Refrigerated = 3 days
Frozen = n/a
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis, Lipemia, incorrect specimen type, insufficient sample volume, improper storage conditions, exceeds specimen stability guidelines, contaminated sample.
Methodology
immunoassay
Setup Schedule
Daily
TM
TM
Report Available
1 day
Clinical Significance
CA 15-3 may be useful for monitoring patients with metastatic breast cancer and certain ovarian cancers. The CA 15-3 values from sequential samples have a high correlation with the clinical course in most patients with metastatic breast cancer.
Performing Laboratory
CompuNet Clinical Laboratories, LLC
2308 Sandridge Drive
Moraine, OH 45439
Last Updated: November 19, 2021
