Answer and Explanation 17

17.  A is the correct answer.  The patient has a lung mass.  Avelox would be correct if the patient had community acquired pneumonia.  A PPD would be appropirate if the patient had a cavitary lesion suspicious for TB.  They are mostly located in the upper lobes because of the aerobic nature of mycobacterium.  Rifampin would be appropriate for a patient with tuberculosis.