AFP test is a blood test that measures alpha-fetoprotein, a protein produced by the fetus. It is used for prenatal screening, cancer diagnosis, and liver disease evaluation. Learn how to prepare, what to expect, and how to interpret the results. AFP is a protein normally made by the fetal liver and sometimes used as a tumor marker for liver or testicular cancer. Learn about the AFP test, its cost, results, normal range, and how it relates to pregnancy and other conditions. An AFP tumor marker test is a blood test that measures the level of AFP (alpha-fetoprotein) in a sample of your blood. It's usually used to help diagnose certain types of cancer and to check how well treatment is working. AFP tests can also check for birth defects in an unborn baby. Doctors may test spinal fluid for AFP, too, depending on what they're looking for. You can have an AFP blood test at your...
