Which of the following is NOT a reason to perform a pulmonary function test on a patient? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a To evaluate the patient's response to bronchodilator therapy b Preoperative evaluation of the lung and pulmonary reserve c Determination of the diffusing capacity of the lung d Determination of lung cancer progression e Differentiation between restrictive and obstructive forms of chronic pulmonary disease .