An alpha-fetoprotein (AFP) test is a blood test that measures the amount of AFP present in blood. It’s usually part of what’s called a triple screen or quad screen in the second trimester of pregnancy ...
Unborn babies normally make alpha-fetoprotein (AFP), and it shows up in their mother's blood. Checking the level of AFP in a mom-to-be can show if their baby may have problems with their neural tube, ...