Screening for open neural tube defects or other fetal abnormalities. Follow-up testing for patients with elevated serum alpha-fetoprotein results or in conjunction with cytogenetic testing.
< or = 2.0 multiples of median (MoM)
3 - 20 days
- AFP, Amniotic Fluid
- Amniotic Fluid AFP (AFAFP)
- MULTIPLE OF THE MEDIAN, AMNIO
- AFP AMNIOTIC FLUID
- ALPHA FETOPROTEIN, AMNIOTIC
- MULTIPLE OF THE MEDIAN
Gestational age must be between 13 and 24 weeks; 16 to 18 weeks is preferred. Collect amniotic fluid and refrigerate. Please provide the following information: date ultrasound performed, estimated due date by ultrasound, and specimen collection date.
The College of American Pathologists (CAP) requires that acetylcholinesterase (AChE) testing be performed on ALL amniotic fluids having elevated AFAFP concentrations. If alpha fetoprotein is positive, acetylcholinesterase testing will be performed at an additional charge (order code ACHE). By ordering this test the clinician acknowledges that additional reflex testing will be performed and billed at a separate additional charge if indicated. Test sent to Mayo Medical Laboratories.