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AFP, Amniotic Fluid

Centralized Core Laboratory : Special Chemistry

Test ID/Workstation :
MOMSO / MAYO
Specimen Type:
Amniotic fluid
Tube Type:
Fluid container
Collection Volume:
1.0 mL (minimum 0.5 mL)
Cause for Rejection:
Gestational age < 13 weeks or > 24 weeks
Storage:
Refrigerated
Availability:
Mon-Fri
Methodology:
AFP-Immunoenzymatic Assay; Acetylcholinesterase- Polyacrylamide Electrophoresis
Special Instructions:
Order Mayo Miscellaneous Sendout (Epic LAB3065) for AFP, Amniotic Fluid. See www.mayomedicallaboratories.com/test catalog for required form: "Second Trimester Maternal Screening Alpha-Fetoprotein (AFP)/QUAD Screen Patient Information". -- If alpha-fetoprotein (AFP) is positive, then acetylcholinesterase (AChE) will be performed at an additional charge.
TAT:
2-4 days
Additional Info:
Reference range: < or =2.0 multiples of median (MoM) ----- 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
CPT Code:
82106 (AFP); 82013-Acetylcholinesterase (if appropriate)
Synonyms:
Alpha-Fetoprotein, Amniotic Fluid