Alpha Fetoprotein Apr 2026

It is a screening test, not a diagnostic one. A positive screen does not mean a definite abnormality; further diagnostics, such as an ultrasound or amniocentesis, are usually required. 2. Alpha-Fetoprotein (AFP) as a Tumor Marker Alpha-Fetoprotein (AFP) Test: MedlinePlus Medical Test

The maternal serum AFP (MSAFP) test is a blood test performed during the second trimester (typically between 15 and 20 weeks) to assess the risk of fetal abnormalities. alpha fetoprotein

Elevated AFP levels may indicate neural tube defects (such as spina bifida or anencephaly), abdominal wall defects, twin pregnancy, or an incorrectly estimated gestational age. It is a screening test, not a diagnostic one