This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
[{'content': 'Dr Jones prescribes albuterol sulfate (Proventil) for a patient with newly diagnosed asthma. When teaching the patient about this drug, the nurse should explain that it may cause: \nSelect and explain. \nA. Nasal congestion, B. Nervousness, C. Lethargy, D. Hyperkalemia', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Albuterol may cause nervousness. The inhaled form of the drug may cause dryness and irritation of the nose and throat,\xa0not nasal congestion; insomnia, not lethargy; and hypokalemia\xa0(with high doses), not hyperkalemia.\nOther adverse effects of albuterol include tremor, dizziness, headache, tachycardia, palpitations, hypertension, heartburn,\xa0nausea, vomiting and muscle cramps.', 'role': 'assistant'}]