How to Cite This Chapter: Don-Wauchope A, Chetty VT, Ivica J, Kavsak P, Khan WI, Lafreniere M, Nouri K, Solnica B. alpha1-Antitrypsin. McMaster Textbook of Internal Medicine. Kraków: Medycyna Praktyczna. https://empendium.com/mcmtextbook/chapter/B31.1269.3.7.192.?utm_source=nieznany&utm_medium=referral&utm_campaign=social-chapter-link Accessed January 15, 2025.
Last Reviewed: May 9, 2022
Last Updated: May 9, 2022
Chapter Information
McMaster Textbook of Internal Medicine Editorial Offices
Editorial Office (Canada)
Authors: Andrew Don-Wauchope, Vasudhevan T. Chetty, Joško Ivica, Peter Kavsak, Waliul I. Khan, Matthew Lafreniere, Kazem Nouri
Editorial Office (Poland)
Authors: Bogdan Solnica
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
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