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. Author manuscript; available in PMC: 2014 Jul 27.
Published in final edited form as: J Rheumatol. 2013 Feb 1;40(3):273–281. doi: 10.3899/jrheum.121048

Table 2. Pulmonary Mechanics.

FVC % pred TLC % pred Corr DLCO % pred Cst mL/cmH2O Cdyn mL/cmH2O MIPes FRC cmH2O MIPes TLC cmH2O
Normal >80 >80 >80 226-428 150-390 >50 25-35
Case 1 37 50 109 73.1 63.9 42.6 14.5
Case 2 42 42 97 76.4 47.7 74.0 23.7
Case 3 33 50 114 72.8 41.4 38.5 12.7
Case 4 38 44 124 55.2 28.4 66.0 33.9
Case 5 37 42 106 165.8 115.3 41.5 12.2
Case 6 36 39 102 67.6 44.0 40.2 15.0

MIPes are recorded by the esophageal balloon catheter as negative pressures since they are measured in the thorax during inspiration; however, per convention, the absolute value is reported. FVC = forced vital capacity; % pred = % predicted; TLC = total lung capacity; Corr = corrected; DLCO = diffusing capacity of the lung for carbon monoxide; Cst = static lung compliance; Cdyn = dynamic lung compliance; MIPes = maximal inspiratory esophageal pressure; FRC = functional residual capacity; NA = not available.