RT Book, Section A1 Fuhlbrigge, Anne L. A1 Choi, Augustine M. K. A2 Kasper, Dennis A2 Fauci, Anthony A2 Hauser, Stephen A2 Longo, Dan A2 Jameson, J. Larry A2 Loscalzo, Joseph SR Print(0) ID 1120807489 T1 Diagnostic Procedures in Respiratory Disease T2 Harrison's Principles of Internal Medicine, 19e YR 2014 FD 2014 PB McGraw-Hill Education PP New York, NY SN 9780071802154 LK accessmedicine.mhmedical.com/content.aspx?aid=1120807489 RD 2021/04/10 AB The diagnostic modalities available for assessing the patient with suspected or known respiratory system disease include imaging studies and techniques for acquiring biologic specimens, some of which involve direct visualization of part of the respiratory system. Methods to characterize the functional changes developing as a result of disease, including pulmonary function tests and measurements of gas exchange, are discussed in Chap. 306e.