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Should You Be Tested?

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The American Lung Association estimates that approximately 100,000 people in the United States suffer from AAT deficiency.*1 Up to 95% of those with AAT deficiency are undiagnosed.2

*Also known as Alpha-1, alpha-1 antitrypsin deficiency, AATD, A1-PI deficiency, alpha-1 proteinase deficiency, A1AD, or hereditary or genetic emphysema.

Testing for Alpha-1 is recommended when you have symptoms of Alpha-1, or if a family member has been diagnosed with Alpha-1. Testing for AAT deficiency is as easy as a simple finger-stick blood test.

Use our convenient interactive symptom checker to see if you might be at risk.

ATS/ERS Standards

"It is recommended that all subjects with COPD or asthma characterized by incompletely reversible air flow obstruction should be tested once for AAT deficiency."3

What are the symptoms related to AAT deficiency?

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  1. American Lung Association. Alpha-1 Antitrypsin Deficiency Emphysema. Available at http://www.lungusa.org/site/pp.asp?c=dvLUK9O0E&b=35014#who. Accessed August 2, 2004.
  2. Wencker M. Screening for alpha1-PI deficiency in patients with lung diseases. Respir Med. 2000;94(suppl C):S16-S17.
  3. Adapted from the American Thoracic Society/European Respiratory Society Statement: Standards for the diagnosis and management of individuals with AAT deficiency. Am J Respir Crit Care Med. 2003; 168:818-900.
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