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Test Code A1ANT Alpha-1-Antitrypsin, Serum

Performing Laboratory

NorDx

Specimen Requirements

Draw blood in a plain, red-top tube or serum gel tube. Spin down and send 0.5 mL (minimum volume: 0.3 mL) of serum refrigerated.

Test Classification and CPT Coding

82103

Methodology

Turbidimetric Immunoassay 

Reference Values

90-200 mg/dL

Note: If clinically indicated, patients with <125 mg/dL should be phenotyped to confirm homozygous and heterozygous deficiencies. 

Day(s) Test Set Up

Monday through Sunday 

Additional Information

Used in the diagnosis of alpha-1-antitrypsin deficiency which can lead to neonatal hepatitis and development of emphysema at an early age.