Alpha-fetoprotein (AFP), amniotic fluid-13485

Test info

  
Alpha-fetoprotein (AFP), amniotic fluid
  
13485
  
LAB13485
  
AFPA
  
α-Fetoprotein (AFP), amniotic fluid
AFP, amniotic fluid
AFP TETRA
Alpha-fetoprotein (AFP), Amniotic Fluid
Amniotic Fluid AFP
  
  • Measurement of amniotic fluid AFP
  • Samples with AFP values ≥2.0 MoM will reflex to detection of acetylcholinesterase and fetal hemoglobin
  

Analysis of midtrimester amniotic fluid for detection of open neural tube defects and ventral wall defects

Specimen

  

The patient's gestational age must be at least 12 weeks for interpretation of alpha-fetoprotein. AChE false-positive and false-negative results are more frequent at gestational ages less than 13 weeks.

  
Amniotic fluid
  

Sterile vial/container

Do not use urine containers or tubes with rubber stoppers, as rubber is toxic to amniocytes.

  
1.0 mL
  

Avoid contamination of amniotic fluid with maternal or fetal blood. As little as one drop of fetal blood can cause false-positive results during assay of amniotic fluid.

  

Sterile vial/container

  
  • Gestational age by ultrasound and/or LMP on the date of draw of the sample
  

Ambient

Performance

  
LabCorp RTP (002428): R-LC
  
Mo - Fr
  
2 - 9 days
  

Chemiluminescent immunoassay

Clinical and Interpretive info

  

An interpretive report will be provided

Billing

  
82106
  
Result UNLOINC

Tracking

  
04/08/2019
  
03/29/2021
  
02/12/2021