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Test Code A1APHM Alpha-1-Antitrypsin Phenotype

Additional Codes

 

MAYO Test ID
A1APP
EPIC Test ID
LAB2259

 

Reporting Name

Alpha-1-Antitrypsin Phenotype

Useful For

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

Profile Information

Test ID Reporting Name Available Separately Always Performed
A1AP2 Alpha-1-Antitrypsin Phenotype No Yes
AATP Alpha-1-Antitrypsin, S Yes, (Order AAT) Yes

Testing Algorithm

See Alpha-1-Antitrypsin-A Comprehensive Testing Algorithm in Special Instructions.

Method Name

A1AP2: Isoelectric Focusing

AATP: Nephelometry

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type

Serum


Specimen Required


Container/Tube: 

Preferred: Red top

Acceptable: Serum gel

Specimen Volume: 1.25 mL


Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 28 days
  Ambient  28 days
  Frozen  28 days

Reject Due To

Hemolysis

Mild OK; Gross OK

Lipemia

Mild OK; Gross reject

Icterus

Mild OK; Gross OK

Other

NA

Reference Values

ALPHA-1-ANTITRYPSIN

100-190 mg/dL

 

ALPHA-1-ANTITRYPSIN PHENOTYPE

The interpretive report will identify the alleles present. For rare alleles, the report will indicate whether or not they have been associated with reduced quantitative levels of alpha-1-antitrypsin.

Day(s) and Time(s) Performed

Monday through Friday; 9 a.m.

CPT Code Information

82103-Alpha-1-antitrypsin

82104-Alpha-1-antitrypsin phenotype

LOINC Code Information

Test ID Test Order Name Order LOINC Value
A1APP Alpha-1-Antitrypsin Phenotype 32769-2

 

Result ID Test Result Name Result LOINC Value
AATP Alpha-1-Antitrypsin, S 6771-0
8166 Alpha-1-Antitrypsin Phenotype 32769-2

Analytic Time

2 days

Test Classification

This test has been cleared or approved by the U.S. Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

Forms

If not ordering electronically, complete, print, and send a Gastroenterology and Hepatology Test Request Form (T728) with the specimen (http://www.mayomedicallaboratories.com/it-mmfiles/gastroenterology-and-hepatology-test-request.pdf)