Test Detail
Maternal Screen NTD Amniotic Fluid
Back to Test DirectoryTest Description |
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Screen for Open Neural Tube Defect (NTD). Positive result reflexes to Maternal Screen ACHE test for confirmation. | |||||
Reflex Test(s) | |||||
ACHE Test by Immunoelectrophoresis | |||||
Performed | Avg. Turnaround Time | Method | |||
Coralville, 8 a.m. - 5 p.m., M-F |
3 - 5 business days | Quantitative Chemiluminescent Immunoassay | |||
Fee | CPT Code(s) | ||||
$45.00 | 82106 | ||||
Specimen Requirements | |||||
Specimen Type: | 2 mL Amniotic Fluid | ||||
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. | ||||
Expected Results: | |||||
MoM value for AFP (NTD screen); Screen Cutoff established for test; Interpretation/Recommended Action: Negative / No further action or Positive / See ACHE result. | |||||
Shipping: | |||||
Wrap specimen container in absorbent material and place inside a biohazard bag. Transport specimen with cold pack. Ship to the Coralville location. | |||||
Comments | |||||
Incorrect information, especially incorrect dating, will result in inaccurate risk assessment. The following information is required for test interpretation: Patient's date of birth, ultrasound date, AND measurement to date the pregnancy, patient's race, if patient requires insulin, and if there is a known family history of neural tube defects (NTD). | |||||
Alternate Names | |||||
AFP Amniotic Fluid, Alpha Fetoprotein Amniotic Fluid |