Definition: This usually is in reference to a maternal screening done between 15-17 weeks of gestation to screen for neural tube defects (NTD), and down syndrome. Has a high false positive rate, though is more effective when the triple screen is done, using hCG, AFP, and estriol. Alpha-fetoprotein is a substance that is produced by the baby.
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Also Known As: AFP, triple screen, ASFAP, Maternal Serum AFP.
Related Resources:
AFP Testing
The hows and whys of testing.AFP & Triple Screen Testing
The basics of the testing and the failure rates as well as some advice from people who have been there.AFP Testing Values
What do the numbers mean?
Elsewhere on the Web:
AFP FAQ
Lynn Gazis-Sax maintains this lengthy, well written FAQ filled with information.Timetable for Prenatal Diagnostic
This chart shows you the optimum time to take any prenatal test, which helps ensure accuracy.
