AFP (Maternal serum)

Test Name
AFP (Maternal serum)
Aliases
Alpha-fetoprotein
Provincial Mnemonic
A1FET
LOINC Test Code
1834-1
Description and Primary Use
Test is not ordered individually but as part of maternal serum screen; diagnostic panel for pregnant woman to detect neural tube defects.
Reorder interval
Not yet defined
TAT
7 Days
Test Cost
Not Available
Tier
1 - General Availability
Ordering Requirements (Restrictions / Conditions)

Patient should be between 15-20 weeks GA. Maternal serum screen requisition is required and must be completed with all information.

Required Consultations
Algorithms and Guidelines

None

Special Patient Preparation

Patient should bewteen 15-20 weeks gestational age

Special Collection / Transport / Processing Requirements

Serum should be separated from contact with cells within two hours of collection

Criteria for Rejection

Please consult specimen stability guide. Valid measurements of AFP in maternal serum CANNOT be made after amniocentesis. Maternal serum samples MUST be drawn PRIOR to amniocentesis

Laboratory Service Area
Clinical Chemistry
Performing Laboratory / Site
Category 4 Laboratory (HSC only)
Last Updated
21-Aug-19