Yes, AFP is found in fetal serum.
Schmidt
D
D
D005260:Female; D005312:Fetal Blood / Q000737:chemistry*; D005315:Fetal Diseases / Q000175:diagnosis; D005820:Genetic Testing / Q000451:nursing; D006801:Humans; D009436:Neural Tube Defects / Q000175:diagnosis; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000451:nursing; D000509:alpha-Fetoproteins / Q000032:analysis*
D000509:alpha-Fetoproteins