Cancer Antigen 27-29 (CA 27-29) Blood Test

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Feature	Labcorp	Quest Diagnostics
Price	$33.49	$33.49
Results in	~2 business days	~5 business days
Sample type	Blood Serum	Blood Serum
Require fasting	No	No

About the test

CA 27-29 is a tumor marker primarily used to monitor breast cancer. It measures a protein released by cancer cells into the blood. Like CA 15-3, it is used to assess treatment response and detect recurrence, but it is not recommended for initial diagnosis due to possible elevation in non-cancerous conditions such as liver disease or benign breast disorders.

Included biomarkers & Reference ranges

Biomarker	Reference range
Cancer Antigen 27-29 (CA 27-29) A tumor marker used to help monitor breast cancer treatment response and watch for recurrence.	—

Reference ranges vary by lab, age, and sex (M/F). Your report shows your exact range. Click any biomarker to see its optimal range and what your results mean.

How it works

1. Order online No referral or insurance
2. Get a requisition By email in 24–72 hours
3. Visit a draw center Bring a matching photo ID
4. Get results Securely by email

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Consultations

Not sure how to read your results? We can help.

Schedule a consultation with a Hormunity specialist. We’ll walk through every marker, interpret what it means for you, and map out the next steps for your care.

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