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Cancer Antigen 15-3
MessagePlease order CA15-3 for routine screening. For specific CA27.29 orders, please contact the lab.
Performed at NCMC for NOCO, EMCH, SRMC and OCH
Performed at NCMC for NOCO, EMCH, SRMC and OCH
Test Code
CA153 - NCMC
Preferred Specimen
1.0 mL serum from Serum SST or Red Top
Minimum Volume
0.5 mL
Specimen Stability
| Specimen Type | Temperature | Time |
| Serum SST | Refrigerated | 48 hours |
| Red Top – Separated* | Refrigerated | 48 hours |
| Serum SST or Red Top – Separated* | Frozen | >48 hours |
*Centrifuge and aliquot into a plastic vial.
Setup Schedule
Monday through Sunday; Continuously
Report Available
Same Day
Reference Range
| Age | |
| 0-7 days | 3.4 – 24.0 |
| 7 days – 12 months | 4.9 – 33.0 |
| 1 year – 19 years | 3.9 – 21.0 |
| 19 years – 150 years | < 25.0 |
Clinical Significance
Immunological in vitro assay for quantitative determination of CA 15-3 in human serum and plasma to aid in the management of breast cancer patients. In conjunction with other clinical and diagnostic procedures, serial testing with this assay is an aid • in the early detection of recurrence in previously treated stage II and III breast cancer patients • for monitoring response to therapy in metastatic breast cancer patients
Performing Laboratory
North Colorado Medical Center
