What conclusions can you draw from the following data, obtai…

What conclusions can you draw from the following data, obtained from a 41-year-old man who admits to “occasional smoking” but otherwise reveals no past history of pulmonary problems?   ACTUAL PRED % PRED   ACTUAL PRED % PRED TLC 4.75 4.90 97% FVC 2.96 3.63 82% FRC 2.31 2.21 105% %FEV1 82% 78%   RV 1.28 1.20 106% FEF200-1200 4.33 5.45 79% VC 3.48 3.63 96% FEF25%-75% 1.95 3.37 58%

Answer the following question based on the following blood g…

Answer the following question based on the following blood gas data:   pH 7.18 PaCO2 67 mm Hg PaO2 49 mm Hg SaO2 76% Hb 10.1 g/dL CaO2 10.4 vol% Bicarbonate 26 mEq/L Base excess –2 mEq/L Respiratory rate 25 beats/min FIO2 0.70     Which of the following could cause this patient’s problem?