Quick highlights
- Tumor marker mainly used for monitoring, not screening
- Trend monitoring over time is more useful than single values
- Can be influenced by non-cancer conditions—context required
- Used alongside imaging and clinical evaluation
- No fasting usually required
- Supports treatment response monitoring when indicated by oncologist
- Not diagnostic alone; avoids alarmist interpretation
- Home blood collection available in many service areas
- Clear guidance on appropriate use and limitations
- SEO coverage: CA 15-3 test, CA15-3 breast cancer marker monitoring
What’s included
Preparation
- Book blood draw (home or lab)
- No fasting unless combined tests require fasting
- Note current treatment status and recent imaging dates
- Collect serum blood sample via trained phlebotomist
- Download report from <a href='/my-account/'>View reports</a>
- Review trend with oncologist; do not interpret single value alone
- Follow clinician plan for imaging and follow-up
- Discuss any new symptoms promptly with clinician
FAQs
A tumor marker that may be used to monitor certain breast cancer contexts under clinician care.
No. It is not recommended as a routine screening test for healthy individuals.
Usually no.
No. It is not diagnostic and must be interpreted with clinical and imaging findings.
To follow trends and assess treatment response; changes over time can be informative.
Yes. Some non-cancer conditions can affect tumor markers; clinicians interpret with context.
Often same day or within 24 hours.
Serum blood sample.
Yes in many serviceable areas.
Discuss with your clinician; single values can be misleading and require context.
Imaging and other clinician-directed evaluations based on care plan.
No. Treatment decisions rely on the full clinical picture.
Download from <a href='/my-account/'>View reports</a>.
Seek clinician evaluation; tumor markers are supportive tools, not definitive tests.
Notes
Tumor markers aid monitoring, not screening alone.
