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What does CA 15/3 mean in a blood test?

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What does CA 15/3 mean in a blood test?

Cancer antigen 15-3 (CA15-3) is a protein made by a variety of cells, particularly breast cancer cells. The protein moves into the blood, where it can be measured. CA15-3 levels are higher than normal in most women with breast cancer that has spread to other parts of the body (called metastatic breast cancer).

What is a normal level of CA 15-3?

CA 15-3 is measured in units per milliliter (U/mL). A normal test should be less than or equal to 30 U/mL. It is important to know that having a positive CA 15-3 blood test does not mean you have breast cancer or that your breast cancer has come back. Other conditions can cause CA 15-3 to be in your blood.

What is the normal range for CA 27-29?

The reference range of serum CA 27-29 is less than 38 U/mL. The upper limit of the range may vary depending on the laboratory and testing kit used for the test. Values obtained with different assay kits, methods, or laboratories cannot be used interchangeably.

How accurate are ca 15/3 tumors?

CA 15-3 in the diagnostic and follow up of patients with breast cancer has a sensitivity ranging from 75-76.9% and the specificity ranging from 85.5-93%.

What is considered a high tumor marker?

Normal range: < 2.5 ng/ml. Normal range may vary somewhat depending on the brand of assay used. Levels > 10 ng/ml suggest extensive disease and levels > 20 ng/ml suggest metastatic disease.

What is CA 19-9 blood test for?

What is a CA 19-9 blood test? This test measures the amount of a protein called CA 19-9 (cancer antigen 19-9) in the blood. CA 19-9 is a type of tumor marker. Tumor markers are substances made by cancer cells or by normal cells in response to cancer in the body.

Do you need to fast for a CA 15-3 blood test?

Before the Test. The CA 15-3 is a blood test typically performed along with a complete blood count (CBC), liver functions tests, and kidney function tests. There are no preparations needed for any of these tests.

What is tumor marker?

Listen to pronunciation. (TOO-mer MAR-ker) A substance found in tissue, blood, bone marrow, or other body fluids that may be a sign of cancer or certain benign (noncancer) conditions.

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