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HelpTest ID AAT Alpha-1-Antitrypsin, Serum
Useful For
Workup of individuals with suspected disorders such as familial chronic obstructive lung disease
Diagnosing alpha-1-antitrypsin deficiency
Special Instructions
Method Name
Nephelometry
Reporting Name
Alpha-1-Antitrypsin, SSpecimen Type
SerumSpecimen Required
Collection Container/Tube:
Preferred: Red top
Acceptable: Serum gel
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions: Centrifuge and aliquot serum into a plastic vial.
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated (preferred) | 28 days | |
| Ambient | 28 days | ||
| Frozen | 28 days |
Reference Values
100-190 mg/dL
Day(s) Performed
Monday through Friday
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
82103
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| AAT | Alpha-1-Antitrypsin, S | 6771-0 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| AAT | Alpha-1-Antitrypsin, S | 6771-0 |
Test Classification
This test has been cleared, approved, or is exempt by the US 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.Testing Algorithm
For more information see Alpha-1-Antitrypsin-A Comprehensive Testing Algorithm.