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) 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



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