Which tests are performed to identify underlying etiology of bronchiectasis?

Updated: Jul 23, 2019
  • Author: Ethan E Emmons, MD; Chief Editor: Zab Mosenifar, MD, FACP, FCCP  more...
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Tests to identify underlying illnesses include the following:

  • Quantitative immunoglobulin levels, to exclude hypogammaglobulinemia

  • Quantitative serum alpha1-antitrypsin (AAT) levels, to rule out AAT deficiency

  • Aspergillus precipitins and serum total IgE levels, to diagnose ABPA

  • Autoimmune screening tests

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