Patients at high risk for postoperative cardiorespiratory morbidity and mortality following lung resective surgery can be identified by routine pulmonary function tests.
Pulmonary Function Test
Finding Suggesting High Risk for Lung Resection
forced vital capacity
< 50% of predicted
forced expiratory volume in 1 second, FEV(1)
< 50% of FVC
forced expiratory volume in 1 second, FEV(1)
< 2 liters
maximal voluntary ventilation
< 50% of predicted
residual volume to total lung capacity ratio
> 50%
diffusing capacity
< 50% of predicted
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