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HelpTest Code AFP ALPHA FETOPROTEIN (MATERNAL)
Methodology
Immunoassay Antibody Detection
Useful for prenatal screening for neural tube defect.
Specimen Requirements
Container/Tube: Plain, red-top tube(s) or serum gel tube(s)
Specimen Volume: 3 mL (minimum volume: 2 mL) of maternal serum
Collection Instructions:
- Gestational age must be between 15 and 22 weeks; 16 weeks is optimal, 16 to 18 weeks is second choice.
- Ultrasound dating of pregnancy is preferred.
Forms: “Shodair Children’s Hospital Second Trimester Maternal Serum Screening Requisition”
See “Requisitions” in Special Instructions for a copy of the form.
Day(s) Test Set Up
Tuesday, Thursday
Reference Values
An interpretive report will be provided.
All abnormal results are called to the attending physician on the day of testing, and are faxed upon request. Written reports are mailed.
Performing Laboratory
Shodair Children's Hospital, Helena
Test Classification and CPT Coding
82105
Specimen Transport Temperature
Refrigerate/Frozen NO/Ambient NO