Problem: To obtain a useful evaluation of pulmonary function in a patient with asthma, you must administer the test when the patient To obtain a useful evaluation of pulmonary function in a patient with asthma, you must administer the test when the patient has suffered a spasm in the bronchial tubes within the previous hour. is experiencing a bronchial spasm. has already been evaluated with chest radiographs. has taken medication to expand the bronchi.