Mr. Z Scenario: Mr. Z is a 63-year-old retired banker with a long history of chronic obstructive pulmonary disease (COPD). He is a longtime smoker, smoking four packs of cigarettes each day for 30 years. For the last week, Mr. Z has experienced a flulike illness with fever and chills. He also complains of nausea, exhaustion, anorexia, diarrhea, and a productive cough with thick, dark […]




