Test Overview
Method
Nephelometry
Result Included
Clearance; α-1-Antitrypsin Faecal; α-1-Antitrypsin Serum
Aliases/Synonyms
A1AT; A1-AT
Specimen
Specimen Type
Feces + SerumVolume
Sample Volume
Serum: 1 mL!Feces: Entire collection
Minimum Volume
Serum: 0.5 mL!Feces: 1 mL homogenized
Specimen Comment
Both feces and serum are required.
Collection & Handling
Collection Instructions
Obtain stool collection kit from ICL. Blood must be drawn during the fecal collection period.
Handling Information
Feces and serum must be submitted together. Store and send frozen.
Additional Information
Obtain fecal collection kit from ICL and submit entire 24-hour collection. If no specimen is obtained in 24 hours, extend collection to 48 to 72 hours. Document collection period (duration) on container. Provide collection period (duration).
Stability
| Ambient | Refrigerated | Frozen |
|---|---|---|
| 14 days | 14 days | 14 days |
Rejection Criteria
| Criteria | Specification |
|---|---|
| Other | Use of any preservative/fixative |
Performance & Interpretation
Turnaround Time
5 days
Results
Name
Units
Reference Range
Conversion
-
ClearancemL/24 h≤27
-
Fecal A1ATmg/dL≤54
-
Serum A1ATmg/dL100 - 190
Referral Location
Out-of-Country
Test Version
Last Updated
2019-09-30