Test Overview
Test Methodology

Isoelectric Focusing

Test Usage

Identification of homozygous and heterozygous phenotypes of the alpha-1-antitrypsin deficiency.

Reference Range *

Interpretive report provided.

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

Test Limitations

This assay does not determine genotype. Genotyping is less variable and more specific than phenotype testing. The preferred test for diagnosing A1A deficiency is the Alpha-1 Antitrypsin Deficiency Profile.

Test Details
Days Set Up
Monday - Friday
Analytic Time

3 - 7 days

Soft Order Code
A1AP
MiChart Code
A1AT Phenotype, Serum
Synonyms
  • A1AP
  • ALPHA-1-ANTITRYPSIN PHENOTYPIN
  • A1AT Phenotype
  • Pi Typing
  • Alpha 1 Antitrypsin Phenotyping
Laboratory
Sendout
Reference Laboratory
Mayo A1APP (26953)
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
1.3 mL serum
Minimum Volume
0.5 mL serum
Additional Information

Test includes Alpha-1 Antitrypsin Phenotyping and Alpha-1 Antitrypsin Serum. Test sent to Mayo Medical Laboratories.

Billing
CPT Code
82104
Fee Code
36158
LOINC
32769-2
Resources