|Values are valid only on day of printing.|
If alpha-fetoprotein (AFP) is positive, then acetylcholinesterase (AChE) will be performed at an additional charge.
Container/Tube: Amniotic fluid container
Specimen Volume: 1 mL
Collection Instructions: Do not centrifuge.
1. The following information is required:
a. Date ultrasound performed
b. Estimated due date by ultrasound
c. Collection date
d. Gestational age must be between 13 and 24 weeks; 16 to 18 weeks preferred.
2. If chromosome studies are also requested, see AF / Chromosome Analysis, Amniotic Fluid. The specimen for AFP-AF testing, when requested with chromosome analysis, cannot be frozen.
Forms: Second Trimester Maternal Screening Alpha-Fetoprotein (AFP)/QUAD Screen Patient Information (T595) is required in Special Instructions.
|Amniotic Fld||Refrigerated||7 days|