Diagnostic test
CA 15.3
About test
What does CA 15.3 measure?
The CA 15.3 test measures the level of cancer antigen 15-3, a marker that may be elevated in some people with breast cancer. It may be used to help monitor response to treatment, check for possible recurrence, or follow changes over time in people already diagnosed with certain breast cancers. It is not usually used alone to diagnose or screen for breast cancer.
This overview is educational. Use the recorded preparation, sample and lab-partner details below for collection guidance, and confirm any missing information before collection.
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Compare eligible lab partners
Prices, report times and availability are shown from the catalog records for each eligible partner.
Thyrocare
- Sample for analysis
- Confirm with the collection team
- Report time
- To be confirmed
Preparation and specimen requirements can vary by test and laboratory. Follow the instructions shown for your selected partner and any advice from your healthcare professional.