The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A 76-year-old man is brought to the physician by his wife because of low back pain and weakness for the past 4 weeks. He says that the pain is sharp, radiates to his left side, and has a burning quality. He has had a cough occasionally productive of blood-streaked sputum for the past 2 months. He has had 3.2-kg (7.0-lb) weight loss in that time. He is now unable to walk without assistance and has had constipation and difficulty urinating for the past 2 weeks. He has hypertension treated with enalapril. He has smoked 1 pack of cigarettes daily for 60 years. His temperature is 37°C (98.6°F), pulse is 75/min, and blood pressure is 150/80 mm Hg. He is oriented to person, place, and time. Neurologic examination shows 3/5 strength of the lower extremities. Deep tendon reflexes are hyperreflexive. Babinski sign is present bilaterally. Sensory examination shows decreased sensation to pinprick below the T4 dermatome. He is unable to lie recumbent due to severe pain. An x-ray of the chest shows multiple round opacities of varying sizes in both lungs. Which of the following is the most appropriate next step in the management of this patient?   (A) Radiation therapy   (B) Intravenous dexamethasone therapy   (C) Intravenous acyclovir therapy   (D) Intravenous ceftriaxone and azithromycin therapy
['(B) Intravenous dexamethasone therapy <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Radiation therapy \n (B) Intravenous dexamethasone therapy \n (C) Intravenous acyclovir therapy \n (D) Intravenous ceftriaxone and azithromycin therapy <> possible answers', '  A 76-year-old man is brought to the physician by his wife because of low back pain and weakness for the past 4 weeks. He says that the pain is sharp, radiates to his left side, and has a burning quality. He has had a cough occasionally productive of blood-streaked sputum for the past 2 months. He has had 3.2-kg (7.0-lb) weight loss in that time. He is now unable to walk without assistance and has had constipation and difficulty urinating for the past 2 weeks. He has hypertension treated with enalapril. He has smoked 1 pack of cigarettes daily for 60 years. His temperature is 37°C (98.6°F), pulse is 75/min, and blood pressure is 150/80 mm Hg. He is oriented to person, place, and time. Neurologic examination shows 3/5 strength of the lower extremities. Deep tendon reflexes are hyperreflexive. Babinski sign is present bilaterally. Sensory examination shows decreased sensation to pinprick below the T4 dermatome. He is unable to lie recumbent due to severe pain. An x-ray of the chest shows multiple round opacities of varying sizes in both lungs. Which of the following is the most appropriate next step in the management of this patient? <> context@']