Update Type: Test Resumed
Test Updated: 06/15/2022
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).

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Monday, Thursday
Analytic Time

7 - 14 days

Soft Order Code
A1AL
MiChart Code
Alpha-1 Antitrypsin Deficiency Profile (Sendout)
Synonyms
  • AAT-Pi
  • Reflex Alpha-1 Antitrypsin Phenotype
  • Pi Typing
  • Protease Inhibitor Allo Typing
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.

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
NY State Approved
No