Alpha Fetoprotein (AFP), Amniotic Fluid with Reflex to AChE Build info

Synonyms

• AF-AFP W/ REFLEX TO ACHE
• AFAFP
• LAB14010

Short Name

Amniotic Fluid - AFP w AchE

Procedure Master Number

LAB14010

Procedure ID

182885

Clinical Info

Measurement of mid-trimester amniotic AFP fluid for detection of open neural tube defects and ventral wall defects.
Samples with AFP values >= 2.0 MoM will reflex to detection of acetylcholinesterase and fetal hemoglobin. 

Specimen Sources

Specimen Types

Container

Screw Cap

Collection Instructions

 Specimen:  3 mL Amniotic Fluid ( 2mL min)
Patient Preparation: 
Patient must be between 15w0d and 21w6d at the time of amniocentesis. Optimally, the patient is between 15w0d and 18w6d. Avoid contamination of amniotic fluid with maternal or fetal blood. No other special preparation is required.
 
Specimen Rejection Criteria: 
       Incorrect tube type
       Insufficient volume
       Fetal/Maternal blood  contamination
      Out of gestational age range
Special Instructions:
The following Ask on Order Entry (AOE) patient information must be provided:  
             Estimated Date of Delivery (EDD)

Transport Instructions

Room Temperature
Refrigerated form overnight Delivery

Specimen Stability

7 days Room Temperature
30 Days Refrigerated

Methodology

Time-Resolved Amplified Cryptate Emission (TRACE)
 
This test was developed, and its performance characteristics determined by Northwell Health Laboratories. 
It has not been cleared or approved by the Food and Drug Administration. The methods and performance 
characteristics have been reviewed and approved by the New York State Department of Health.

Days Performed

Monday - Friday
TAT: 1 -2 Days upon receipt

Performing Laboratory

Northwell Core Lab at CFAM

CPT

82106

PDM

Only Orderable at Locations:

Results