Alpha-fetoprotein test. This is a simple blood test that measures the level of a substance called alpha-fetoprotein that is associated with some major birth defects. An abnormally high or low level may indicate the need for further testing.

The alpha-fetoprotein (AFP) test is a blood test that is performed during pregnancy. This screening test measures the level of AFP in the mother's blood and indicates the probability that the fetus has one of several serious birth defects.

Alpha fetoprotein is elevated when there are neural tube defects such as spina bifida.

alpha fetoprotein

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