A patient has a 20 year history of emphysema, and has just been hospitalized with an acute exacerbation of his emphysema. Which findings would the nurse expect to note on assessment? (Select all that apply.)
A. A low CO2 level noted on the ABG
B. Hyperinflated lungs noted on chest x-ray
C. Decreased oxygen saturation with mild exercise
D. A flattened diaphragm noted on the chest x-ray
E. Increased vital capacity noted on pulmonary function tests.