MedicalTerminology DB
Tests, Imaging & Diagnosis

CA 19-9 assay

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1 Definition of CA 19-9 assay

Meaning of CA 19-9 assay: A test that measures the level of CA 19-9 in the blood.

A test that measures the level of CA 19-9 in the blood. CA 19-9 is a tumor marker released into the bloodstream from both cancer cells and normal cells. Higher than normal amounts of CA 19-9 in the blood can be a sign of gallbladder or pancreatic cancer or other conditions.

For learning, not diagnosis. This glossary provides general educational information and is not a substitute for advice from a qualified healthcare professional. If you may be experiencing a medical emergency, contact local emergency services.