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Alpha-1-Antitrypsin
0050001
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.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
 
Collect
Plasma separation tube or serum separator tube. Also acceptable: Lavender (EDTA) or pink (K2EDTA). 
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


Note
CPT Code(s)
82103
Components
Component Test Code*Component Chart NameLOINC
0050001Alpha-1-Antitrypsin1825-9
* 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