Test Directory

Test Code
A1AST
Test Name
Alpha-1-Antitrypsin, Random Stool
CPT Codes
82103
Expected Turnaround Time
4 - 8 days
Clinical Utility

This α1-antitrypsin ELISA test is intended for the quantitative determination of α1-antitrypsin in stool samples.

Specimen and Container Info

Specimen Type: Random Stool 

 

Collection Container: Sterile Container (Preservative Free)

 

Desired Specimen Volume: 1 g

Collection Instructions
  1.  Collect stool specimen in a sterile container.
Processing and Submission Instructions
  1. Transport 1g of stool in the original collection container.
  2. Do not contaminate outside of container with specimen and do not overfill container.
  3.  Loose/watery stools are acceptable.
  4. Ensure that no toilet tissue/sanitary materials are present in the submitted specimen.
Transport Instructions

Transport to the laboratory frozen.

Stability Requirements

Room Temperature

14 days

Refrigerated

14 days

Frozen

14 days

Causes for Rejection
  • Nonfecal sample received (eg, serum, plasma, urine)
  • Sample taken from diaper unless portion taken has not been in contact with diaper material
  • Preserved stool received (eg, 10% Formalin, Merthiolate Formalin, Sodium Acetate Formalin, or Polyvinyl Alcohol)
Methodology
ELISA
Reference Intervals

See patient report.

Limitations

Results of this test are labeled for research purposes only by the assay's manufacturer. The performance characteristics of this assay have not been established by the manufacturer. The result should not be used for treatment or for diagnostic purposes without confirmation of the diagnosis by another medically established diagnostic product or procedure.

Alternate Names
  •  α1-Antitrypsin, Fecal, Quantitative
Reference Lab
Labcorp Of America Holdings
Testing Schedule
Routine, 2 times per week