For a brief introduction and guide to abbreviations, see Laboratory Tests: General Remarks.
Analyte [material]
alpha1-Antitrypsin (also called alpha1-antiprotease) [S]
Reference range, target level, or decision threshold
150-350 mg/dL (1.5-3.5 g/L)
Interpretation of results
↑ Inflammation and infection (acute-phase reactant), pregnancy, estrogen-containing medications
↓ Congenital alpha1-antitrypsin deficiency