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. Author manuscript; available in PMC: 2012 Jul 23.
Published in final edited form as: Ann Allergy Asthma Immunol. 2011 Jan 6;106(3):191–199. doi: 10.1016/j.anai.2010.11.011

Figure 2.

Figure 2

Representative graphical report of IOS testing. A and B, Composite plot developed by Goldman10 illustrates both resistance, R, and reactance, X, as a function of Freq (Hz) before bronchodilator (A) and postbronchodilator (B). AX is the area under the curve of reactance. C and D, The same curves displayed separately as pre and post R (C) and X (D).