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Pathology Departments Requesting & Reporting Blood Test Information Phlebotomy Guide Contact us
Blood Sciences

Blood Test Information

minimum sample volume required ~ 5ml

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Test Code: C15

Tube type: SST

Other acceptable tube types
Lithium heparin (pale green)

Special instructions

Reference Range
Please note: Change in method and upper reference limit from 10/01/2023.
Patients with known elevated CA15-3 may have significantly lower results with the new method.


Turnaround Time
2 days

Department: Biochemistry

Clinical Application
CA15.3 is a tumour marker for diagnosed breast cancer. Its use in screening for disease is limited by sensitivity and specificity


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