January 15, 2020 Case Report: 62-year-old man with shortness of breath after taking antibiotic A 62-year-old male with history of coronary artery disease and prior coronary bypass surgery eight years ago presents to the emergency department after having two days of intermittent shortness of breath since starting cephalexin (Keflex) for a skin infection three days ago. He states the shortness of breath seems to get worse about an hour after taking cephalexin (Keflex). Can you diagnose this patient?   Case Report: 52-year-old lethargic woman with nystagmus A 52-year-old female with a history of diabetes, alcoholism, anxiety and major depression is brought to the emergency department for altered mental status and a possible drug overdose. What's your diagnosis?