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USMLE Step3 Infectious Disease

Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. low grade fever - maculopapular rash - lymphadenopathy






2. foot infections in DM






3. What is the indication of corticosteroid in pcp infection?






4. patient is taking inhaled corticosteroid for asthma - now p/w oral candidiasis






5. acute febrile reaction develops after starting penicilin tx to syphilis patient






6. What is the mch of ampicillin induced rash in IM






7. what parameters increases risk of neurosyphilis in HIV patient






8. What is the prognosis of lyme arthritis?






9. how CMV presents in immunocompromised patients






10. How to dx cryptococal meninggits






11. antibiotic with good prostate penetration?






12. how HAART therapy affects HIV viral loads?






13. What is characteristic for dx of rocky mountain spotted fever?






14. pneumococcal vaccine indication?






15. When to tx influenza with antiviral therapy?






16. Tx of choice for human bites






17. what if monospot test is neg in IM?






18. wisconsin - missisipi - ohio






19. after exposure of HIV when antibody testing is performed?






20. How to give postexposure prophylaxis to patient who received vaccine but titer inadequate






21. How to differentiate different types of necrotizing fascitis?






22. when we see echym gangrenosum?






23. What are the behavioral interventions decrease the risk of UTI






24. gas gangrene






25. What is the Tx of cryptococcal meninngitis






26. When to tx asymptomatic bacteriurea >100 -000?






27. What is the pathophysiology of Meningococcal meningitis?






28. When not to tx asymptomatic bacteriura?






29. What is lag time to develop lyme arthritis after exposure to vector






30. where TB normally affects






31. INH






32. How to dx?






33. what would be viral load after 4 weeks






34. How to dx bacterial meningitis from CSF study?

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35. How to dx progressive multifocal leukoencephalopathy






36. after bone marrow transplant - patient develop headache - fever - cought and chest pain. What is dx?






37. How to tx pcp?






38. reddish colored papules with central umbilication in HIV or immunocompromised patient






39. pathophysiology of toxic shock syndrom?






40. systolic HTN in elderly






41. damae that is about to occur?






42. What is tetanus - diptheria - pertusis recommendation?






43. How to dx IM?






44. How to dx adequate response to HBV vaccine






45. if a patient received BCG vaccine - how big is his PPD induration

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46. What is the classic signs of nec fasc?






47. which heart valve is closer to ventricular conduction system/






48. How to confirm dx if pcp?






49. rifampin






50. dame that has already occurred