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A 19 year old man is referred to the clinic for a positive purified protein derivative (PPD) test for tuberculosis. He moved to the United States from Egypt 2 years ago and has been in a good health. He has no history of fever, cough, weight loss or night sweats. He has no family history or contacts with tuberculosis. His physical examination is normal. His chest x-ray shows no cavitation or hilar adenopathy.
What is the appropriate next step in management for this patient?
A- Repeat the PPD test and x-ray after 6 months
B- Start treatment with isoniazid for 9 months
C- Start treatment with multiple drug- antituberculosis therapy
D- Isolation and full antituberculous therapy for 6 months
Answer: http://medical-usmle.com/?p=1455
 
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