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Test Code MSCONF Maternal Screen NTD Amniotic Fluid LAB663

Specimen Requirement

2 mL Amniotic Fluid

 

Refer to the State Hygienic Lab website for complete collection and shipping instructions. 

 

Patient Preparation: Amniocentesis. Specimen must be collected between 96 and 160 days gestational age for valid results.
Collection Instructions: Use an aliquot tube or tube without preservative to collect amniotic fluid at amniocentesis procedure. Program brochures and patient consent forms are available for order.
Temperature and Stability: Refrigerated (2-8°C). Specimen must be received within 9 days of collection.
Unacceptable Conditions: Amniotic fluid contaminated with fetal blood cannot be reflexed to ACHE test if Positive. Samples not collected within the required gestational age range for the test requested.

Reference Values

MoM value for AFP (NTD screen); Screen Cutoff established for test; Interpretation/Recommended Action: Negative / No further action or Positive / See ACHE result.

Performance

3 - 5 business days

Useful For

Screen for Open Neural Tube Defect (NTD). Positive result reflexes to Maternal Screen ACHE test for confirmation.

CPT Information

82106, 82013 if reflexed

Method

Quantitative Chemiluminescent Immunoassay