Correct!
5. All of the above
Adult bronchiectasis can result from several abnormalities including cystic fibrosis or repeated infections because of an immunodeficiency or abnormal mucus transport from cilia abnormalities (1). The patient had previously had negative genetic testing for a mutation associated with cystic fibrosis and did not have cilia abnormalities. However, previous testing had demonstrated low immunoglobulins, including IgG ,and he was receiving Hizentra® or subcutaneous IgG. His IgG was normal while receiving Hizentra® (1378 mg/dL) although his IgA remained low (<10 mg/dL).
What other testing should be done? (Click on the correct answer to be directed to the fourth of six pages)