Alpha-1-Antitrypsin, Quantitative by ELISA, Random Stool
Also known as: A1A RANDOM
Use
Alpha-1-Antitrypsin is a serum protein that protects tissues from enzymes of inflammatory cells, especially neutrophil elastase. A deficiency in Alpha-1-Antitrypsin can lead to lung and liver disease. The quantitative measurement of Alpha-1-Antitrypsin in stool can help diagnose protein-losing enteropathy and other conditions associated with excess protein loss through the gastrointestinal tract.
Special Instructions
Patients are required to collect a random stool sample using the provided Stool Transport Kit (ARUP Supply # 40910). This kit can be ordered online or through ARUP Client Services. Samples must be transferred to an unpreserved stool transport vial before submission.
Limitations
This test is developed as a Laboratory Developed Test (LDT) and is not FDA-approved. It is performed in a CLIA-certified laboratory setting for clinical purposes. The test result can be affected by improper specimen collection, transport, or storage conditions. Specimens with preservatives or media are not acceptable.
New York Approved
Methodology
Immunoassay (ELISA)
Biomarkers
LOINC Codes
- 25303-9
Result Turnaround Time
1-3 days
Related Documents
For more information, please review the documents below
Specimen
Stool
Volume
5 g
Minimum Volume
1 g
Container
Unpreserved stool transport vial (ARUP supply #40910)
Collection Instructions
Transfer 5 g stool to an unpreserved stool transport vial, available through ARUP Connect or Client Services.
Storage Instructions
Frozen.
Causes for Rejection
Specimens in media or preservatives.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 24 hours |
| Refrigerated | 7 days |
| Frozen | 3 months |