Specimen Requirements
Title
Alpha-1-Antitrypsin, Feces, 24 Hour
Specimen Requirement
Collect stool for a 24 hour period, transfer 10 grams to a sterile screw top cup and send refrigerated.
Methodology
Nephelometry
Stability
Room temp: Unacceptable, Refrigerated: 8 days, Frozen: 28 days
Reference Range
The reference range is determined by the performing laboratory and will show on the report.
Turnaround
2-4 days
Clinical Use
This test measures alpha-1-antitrypsin (AAT) concentration in a 24-hour stool specimen. The result of this test, preferably interpreted jointly with the result of a simultaneous plasma AAT level, may aid in the diagnosis of protein-losing enteropathy.
Test Code
24A1A