Test Overview
Test Methodology

Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)

Test Usage

Determining the specific proteotype for prognosis and genetic counseling for patients with alpha-1-antitrypsin deficiency.

Reference Range *

Negative for S and Z phenotype (Non S Non Z).

Test Details
Days Set Up
Monday, Thursday
Analytic Time

7 - 14 days

Soft Order Code
A1ALC
MiChart Code
Alpha-1 Antitrypsin Deficiency Profile (Sendout)
Synonyms
  • A-1 Antitrypsin Genotype
  • A1AT Genotype
  • A-1AT Genotype
  • AAT-Pi
  • Anti Trypsin Genotype
  • Reflex Alpha-1 Antitrypsin Phenotype
  • Pi Typing
  • Protease Inhibitor Allo Typing
  • Alpha 1 Antitrypsin Deficiency Profile
  • A1ATR
  • A1AT Deficiency Profile
  • A1APT
  • A1AT Phenotype, Serum
  • A1ALC
  • A1APR
Laboratory
Sendout
Reference Laboratory
Mayo A1ALC
Section
Special Testing
Specimen Requirements
Collection Instructions

Collect specimen in a red top or SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate.

Yellow Top Tube
Normal Volume
1.25 mL serum
Minimum Volume
0.5 mL serum
Additional Information

Test includes Alpha-1 Antitrypsin Proteotype and Alpha-1 Antitrypsin Serum. If the mass spectrometry proteotype and quantitative serum level are discordant, Alpha-1 Antitrypsin Phenotyping (A1APR) will be performed at an additional charge. By ordering this test the clinician acknowledges that additional reflex testing will be performed and billed at a separate additional charge if indicated. Alpha-1 Antitrypsin Phenotyping (A1AP) (Mayo A1APP) is also available individually. Test sent to Mayo Medical Laboratories.

Billing
CPT Code
82542
Fee Code
AA220
Reflex CPT
82104
Reflex Fee Code
37996