Alpha 1 Antitrypsin, Fecal
Alpha-1-Antitrypsin , MAYO: A1AF, EPIC: LAB5930, SOFT: XA1AF
Specimen Collection Criteria
Collect: 5.0 gram random stool specimen in a sterile collection container. (Min: 1.0 mL homogenized stool)
Physician Office/Drawsite Specimen Preparation
Maintain specimen frozen (-20°C/-4°F or below) prior to transport.
Preparation for Courier Transport
Transport: 5.0 gram random stool, frozen (-20°C/-4°F or below). (Min: 1.0 mL homogenized)
- Specimens not collected and processed as indicated.
Monday - Saturday.
Results available in 2-4 days.
Less than or equal to 54 mg/dL.
This assay aids in the diagnosis of protein-losing enteropathy. The recommended assay for this diagnosis is the alpha-1-antitrypsin clearance (feces and serum). In the absence of a 24-hour stool collection and/or a contemporary serum specimen, the fecal concentration of alpha-1-antitrypsin can be used as a plasma marker. The clearance is preferred in order to normalize the large range of serum alpha-1-antitrypsin concentrations.
MAYO: A1AF, EPIC: LAB5930, SOFT: XA1AF
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This directory currently reflects information only for specimens collected and/or processed at the
Farmington Hills, Grosse Pointe, Royal Oak, and Troy campuses.