【单选题】A 65-year-old man with a 2-year history of angina pectoris is admitted to the hospital with excruciating substernal chest pain that is not relieved by rest or medication. Physical examination shows di...
【单选题】During a routine physical examination, a 35-year-old male is found to have a blood pressure of 170/105 mmHg. History reveals episodes of headache accompanied by palpitations, diaphoresis, and anxiety....
【单选题】During a routine physical examination, a 35-year-old male is found to have a blood pressure of 170/105 mmHg. History reveals episodes of headache accompanied by palpitations, diaphoresis, and anxiety....