A 65-year-old man is being evaluated for possible right pneumonectomy for bronchogenic carcinoma. The value most suggestive of postuperative problems, is
High-Yield Explanation
All of the listed tests are used in evaluating pulmonary function. Disturbing values include DLCO less than 50 percent predicted, FEV1 0.8l (60 percent of FVC), MV02 <10 mllkg/min, PaC02 > 46 torr, Pa02 < 70 torr