system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 49-year-old man seeks evaluation at an urgent care clinic with a complaint of palpitations for the past few hours. He denies any chest pain, shortness of breath, or sweating. He is anxious and appears worried. His medical history is unremarkable with the exception of mild bronchial asthma. He only uses medications during an asthma attack and has not used medications since last week. He is a former smoker and drinks a couple of beers on weekends. His heart rate is 146/min, respiratory rate is 16/min, temperature is 37.6°C (99.68°F), and blood pressure is 120/80 mm Hg. The physical examination is unremarkable, and an electrocardiogram is ordered. Which of the following groups of drugs should be given to treat his symptoms?
assistant
Selective β1-receptor antagonist