Friday, February, 10, 2012

Alpha-1 antitrypsin

Table of Contents

Alternative Names

A1AT test


Normal Values

Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.


What abnormal results mean

Lower than normal levels of A1AT may be associated with:

  • Cirrhosis
  • Emphysema
  • Liver tumors
  • Obstructive jaundice
  • Portal hypertension


Review Date: 05/23/2010
Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)