Actinomycetes MCQs

  1. Which of the following is a characteristic feature of Actinomycetes?
    • a) Gram-positive staining
    • b) Gram-negative staining
    • c) Filamentous branching ✅
    • d) Spore-forming

  2. Which Actinomycete species is responsible for causing actinomycosis in humans?
    • a) Streptomyces griseus
    • b) Actinomyces israelii ✅
    • c) Nocardia asteroides
    • d) Mycobacterium tuberculosis

  3. Which of the following is a common symptom of actinomycosis?
    • a) Fever
    • b) Skin rash
    • c) Abscesses ✅
    • d) Diarrhea

  4. Which of the following is a common treatment for actinomycosis?
    • a) Penicillin ✅
    • b) Doxycycline
    • c) Rifampin
    • d) Amoxicillin

  5. Which of the following is a common route of transmission for Actinomyces israelii?
    • a) Ingestion
    • b) Inhalation
    • c) Trauma or surgery ✅
    • d) Vector-borne

  6. Which of the following is a characteristic of Actinomyces israelii that makes it difficult to culture?
    • a) It is a Gram-positive bacterium.
    • b) It is a non-motile bacterium.
    • c) It requires special culture media ✅
    • d) It is a spore-forming bacterium.

  7. Which of the following is a characteristic of Actinomyces israelii that makes it difficult to visualize?
    • a) It is a Gram-positive bacterium.
    • b) It is a non-motile bacterium.
    • c) It is too small to be seen with a light microscope ✅
    • d) It is a spore-forming bacterium.

  8. Which of the following is a common diagnostic method for Actinomyces israelii?
    • a) Gram staining
    • b) PCR ✅
    • c) Acid-fast staining
    • d) ELISA

  9. Which of the following is a common site of infection for Actinomyces israelii?
    • a) Skin
    • b) Gastrointestinal tract
    • c) Cervicofacial region ✅
    • d) Respiratory tract

  10. Which of the following is a common complication of Actinomyces israelii infection?
    • a) Meningitis
    • b) Pneumonia
    • c) Abscesses ✅
    • d) Gastroenteritis

  11. Which of the following is a common treatment for Actinomyces israelii meningitis?
    • a) Penicillin
    • b) Doxycycline
    • c) Rifampin ✅
    • d) Amoxicillin

  12. Which of the following is a common treatment for Actinomyces israelii pneumonia?
    • a) Penicillin
    • b) Doxycycline ✅
    • c) Rifampin
    • d) Amoxicillin

  13. Which of the following is a common treatment for Actinomyces israelii skin infection?
    • a) Penicillin
    • b) Doxycycline ✅
    • c) Rifampin
    • d) Amoxicillin

  14. Which of the following is a common treatment for Actinomyces israelii urinary tract infection?
    • a) Penicillin
    • b) Doxycycline ✅
    • c) Rifampin
    • d) Amoxicillin

  15. Which of the following is a common treatment for Actinomyces israelii gastrointestinal infection?
    • a) Penicillin
    • b) Doxycycline ✅
    • c) Rifampin
    • d) Amoxicillin

  16. Which of the following is a common treatment for Actinomyces israelii central nervous system infection?
    • a) Penicillin
    • b) Doxycycline
    • c) Rifampin ✅
    • d) Amoxicillin

  17. Which of the following is a common treatment for Actinomyces israelii ocular infection?
    • a) Penicillin
    • b) Doxycycline ✅
    • c) Rifampin
    • d) Amoxicillin

  18. Which of the following is a common treatment for Actinomyces israelii bone infection?
    • a) Penicillin
    • b) Doxycycline ✅
    • c) Rifampin
    • d) Amoxicillin

  19. Which of the following is a common treatment for Actinomyces israelii joint infection?
    • a) Penicillin
    • b) Doxycycline ✅
    • c) Rifampin
    • d) Amoxicillin

  20. Which of the following is a common treatment for Actinomyces israelii soft tissue infection?
    • a) Penicillin
    • b) Doxycycline ✅
    • c) Rifampin
    • d) Amoxicillin

  21. Which of the following is a common treatment for Actinomyces israelii lymphatic infection?
    • a) Penicillin
    • b) Doxycycline ✅
    • c) Rifampin
    • d) Amoxicillin

  22. Which of the following is a common treatment for Actinomyces israelii disseminated infection?
    • a) Penicillin
    • b) Doxycycline ✅
    • c) Rifampin
    • d) Amoxicillin

  23. Which of the following is a common treatment for Actinomyces israelii chronic infection?
    • a) Penicillin
    • b) Doxycycline ✅
    • c) Rifampin
    • d) Amoxicillin

  24. Which of the following is a common treatment for Actinomyces israelii recurrent infection?
    • a) Penicillin
    • b) Doxycycline ✅
    • c) Rifampin
    • d) Amoxicillin

  25. Which of the following is a common treatment for Actinomyces israelii resistant infection?
    • a) Penicillin
    • b) Doxycycline ✅
    • c) Rifampin
    • d) Amoxicillin

  26. Which of the following is a common treatment for Actinomyces israelii immunocompromised infection?
    • a) Penicillin
    • b) Doxycycline ✅
    • c) Rifampin
    • d) Amoxicillin

  27. Which of the following is a common treatment for Actinomyces israelii pediatric infection?
    • a) Penicillin
    • b) Doxycycline ✅
    • c) Rifampin
    • d) Amoxicillin

  28. Which of the following is a common treatment for Actinomyces israelii elderly infection?
    • a) Penicillin
    • b) Doxycycline ✅
    • c) Rifampin
    • d) Amoxicillin

  29. Which of the following is a common treatment for Actinomyces israelii pregnancy infection?
    • a) Penicillin
    • b) Doxycycline ✅
    • c) Rifampin
    • d) Amoxicillin

  30. Which of the following is a common treatment for Actinomyces israelii post-surgical infection?
    • a) Penicillin
    • b) Doxycycline ✅
    • c) Rifampin
    • d) Amoxicillin
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