From: Orthopnea secondary to brachial plexitis with bilateral diaphragmatic paralysis
 | Sitting |  | Supine | ||||
---|---|---|---|---|---|---|---|
 | Actual | Predicted | % Predicted | Lower Limit Normal | Actual | % Predicted | % Change |
FVC (L) | 3.06 | 4.93 | 61 | 3.86 | 1.11 | 22 | -63 |
FEV1 (L) | 2.22 | 3.89 | 57 | 3.04 | 0.59 | 15 | -73 |
FEV1/FVC (%) | 72.69 | 79.15 | 91 | 68.23 | 52.72 | 66 | -27 |
FEF 25–75% (L/sec) | 1.51 | 3.55 | 42 | 1.91 | 0.19 | 5 | -87 |
FEF Max (L/sec) | 6.88 | 9.76 | 70 | 7.45 | 1.87 | 19 | -72 |
MIP (cmH2O) | -41 | -123 | 33 | Â | |||
MEP (cmH2O) | 135 | 233 | 57 | Â |