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HelpTest Code A1AF Alpha-1-Antitrypsin, Random, Feces
Ordering Guidance
The preferred test for diagnosing protein-losing enteropathies is A1AFS / Alpha-1-Antitrypsin Clearance, Feces and Serum.
Specimen Required
Supplies:
-Stool container, Small (Random), 4 oz (T288)
-Stool Collection Kit, Random (T635)
Container/Tube: Stool container
Specimen Volume: 5 g
Collection Instructions: Collect a random fecal specimen.
Children's Mercy Hospital
Note:
CMH COLLECTION: random stool specimen in sterile cup
Specimen Minimum Volume
Homogenized stool: 1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Fecal | Frozen (preferred) | 14 days |
| Ambient | 14 days | |
| Refrigerated | 14 days |
Useful For
Diagnosing protein-losing enteropathies, especially when used in conjunction with serum alpha-1-antitrypsin (AAT) levels as a part of AAT clearance studies
Reject Due To
| Collected in any preservative or fixative | Reject |
Day(s) Performed
Monday through Friday
Report Available
1 to 3 daysReporting Name
Alpha-1-Antitrypsin, Random, FReference Values
≤54 mg/dL
Method Name
Nephelometry
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
82103