A client with an 80-pack-year history of tobacco smoking has presented to the clinic complaining of "bronchitis" cough for the past 5 months, weight loss, and shortness of breath. Today, this client "got scared" when he coughed up blood in his sputum. The health care provider is concerned this client may have which of the following possible diagnoses?A) Small cell lung cancer due to smoking historyB) Tuberculosis due to long period of coughingC) Pulmonary embolism due to blood in sputumD) Pneumothorax related to chronic lung infection weakening the alveoli
