Alpha-1-Antitrypsin Phenotype (Includes Alpha-1-Antitrypsin)
0080500
Ordering Recommendation
Determine specific AAT protein variant(s) in individual with decreased concentration of AAT (<100 mg/dL).
Mnemonic
A1A PHENO
Methodology
Qualitative Isoelectric Focusing/Immunoturbidimetry
Performed
Sun-Sat
Reported
2-4 days  
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
Patient Preparation
  
Collect
Serum separator tube or plain red.  
Specimen Preparation
Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.3 mL)  
Storage/Transport Temperature
Refrigerated.  
Unacceptable Conditions
  
Remarks
  
Stability
After separation from cells: Ambient: 1 week; Refrigerated: 3 months; Frozen: 3 months (avoid repeated freeze/thaw cycles)  
Reference Interval
 
 
Test Number Components Reference Interval
 Phenotype By report
0050001Alpha-​1-​Antitrypsin 100-​200 mg/dL
Interpretive Data
 
Note
Interpret with caution if the patient has been transfused within the previous 21 days.
CPT Code(s)
82104; 82103
Components
Component Test Code*Component Chart Name
0050001Alpha-1-Antitrypsin
0099005A1A Phenotype
* 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
  • a-1-Antitrypsin, Phenotype
  • A1A Phenotype
  • A1A Phenotyping
  • A1A reflex
  • AAT deficiency
  • AAT Phenotype
  • AAT Phenotyping
  • AAT Reflex
  • Alpha 1 Antitrypsin
  • Antitrypsin
  • Antitrypsin, Phenotype
  • AqA genotyping/phenotyping reflex
  • Pi Typing
  • Protease Inhibitor Allo Typing
  • Protease Inhibitor Typing