Ordering Recommendation
Determines alpha-1-antitrypsin (AAT) enzyme plasma concentration for the initial evaluation of AAT deficiency.
Mnemonic
A1A
Methodology
Quantitative Immunoturbidimetry
Performed
Sun-Sat
Reported
Within 24 hours
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect
Plasma separation tube or serum separator tube. Also acceptable: Lavender (EDTA), pink (K2EDTA), Green (Lithium Heparin).
Specimen Preparation
Allow specimen to clot completely at room temperature. Separate serum or plasma from cells ASAP or within 2 hours of collection. Transfer 0.5 mL serum to an ARUP Standard Transport Tube. (Min: 0.2 mL)
Storage/Transport Temperature
Refrigerated.
Unacceptable Conditions
Hemolyzed specimens.
Remarks
Stability
After separation from cells: Ambient: 1 week; Refrigerated: 3 months; Frozen: 3 months (avoid repeated freeze/thaw cycles)
Reference Interval
Effective November 17, 2014
90-200 mg/dL
Interpretive Data
Compliance Category
FDA
Note
Hotline History
N/A
CPT Codes
82103
Components
Component Test Code* | Component Chart Name | LOINC |
---|---|---|
0050001 | Alpha-1-Antitrypsin | 1825-9 |
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
- A1-Antitrypsin
- A1A
- AAT
- Alpha 1 Antitrypsin
- Anti-Alpha-1-Trypsin
Alpha-1-Antitrypsin