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HelpTest Code A1APP Alpha-1-Antitrypsin Phenotype, Serum
Specimen Required
Collection Container/Tube:
Preferred: Red top
Acceptable: Serum gel
Submission Container/Tube: Plastic vial
Specimen Volume: 1.25 mL
Collection Instructions: Centrifuge and aliquot serum into a plastic vial.
CMH COLLECTION: 3 mL in red gel vacutainer
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Refrigerated (preferred) | 28 days |
| Ambient | 28 days | |
| Frozen | 28 days |
Testing Algorithm
See Alpha-1-Antitrypsin-A Comprehensive Testing Algorithm in Special Instructions.
Useful For
Identification of homozygous and heterozygous phenotypes of the alpha-1-antitrypsin deficiency
Reject Due To
| Gross hemolysis | OK |
| Gross lipemia | Reject |
| Gross icterus | OK |
Day(s) Performed
Monday through Friday
Report Available
2 to 6 daysReporting Name
Alpha-1-Antitrypsin PhenotypeReference 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.
Method Name
A1AP2: Isoelectric Focusing
AATP: Nephelometry
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
82103
82104
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 |