CA 15-3 (Cancer Marker)

Biomarker blood screening test for breast cancer

  • Doctor reviewed
Sample
Blood
Collection
Venous draw at clinic or nurse home visit
Results in
5 days
Biomarkers
1
Doctor reviewed
Yes
Tests for
  • CA 153

Test specifications

Sample type
blood
Collection method
venous draw at clinic or nurse home visit
Turnaround time
5 days
Biomarkers tested
1
At-home test
No
Doctor reviewed
Yes
Gender focus
Both

What's tested

1 biomarker as listed by Blue Horizon Medicals.

  • CA 153

About this test

Cancer antigen 15-3 (CA 15-3) is a protein (antigen) generated by cells in response to a number of changes within the body. This antigen is classified as a tumour marker because elevated levels may signal the presence of certain cancers, such as breast cancer (but also pancreas, liver, lung and ovary) and also a number of non cancerous conditions. It is important to understand that CA 15-3 tests are not used for diagnosing cancer as there are too many possible causes for an elevated result. The level may help evaluate how a cancer is responding to treatment, but if unexpectedly high in someone not known to have had cancer may trigger further investigation. Generally, variations in CA 15-3 levels assist cancer specialists in determining whether a tumour is stable, growing, shrinking, or has returned.

Description provided by Blue Horizon Medicals.

View all →