AFP (Alpha-Fetoprotein)

Alpha-Fetoprotein (AFP) is a protein produced mainly by the liver of a developing fetus. In adults, this test measures AFP levels to help detect liver cancer, certain testicular cancers, and other co…

Category: Tumor Markers

Also known as: afp, alpha-fetoprotein, alpha fetoprotein, α-fetoprotein

Reference range: 0–8 ng/mL (Source: ABIM)

Standard unit: ng/mL

High values may indicate

High AFP levels may indicate hepatocellular carcinoma (liver cancer), germ cell tumors (testicular or ovarian), hepatitis, cirrhosis, or pregnancy.

Low values may indicate

Low AFP levels in adults are normal. In prenatal screening, low AFP may be associated with Down syndrome.

Source: MedlinePlus, U.S. National Library of Medicine

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