Medical Question of the Day- 31

A 40-year-old man with a long history of intravenous drug addiction presents to the emergency room complaining of fever, anorexia, malaise, shortness of breath, cough and chest pain for 2 days.  On physical examination, temperature is 102.7 F, Pulse is 110/min. and blood pressure is 110/66. Irregular erythematous nodules are seen on his hands and feet.

Which of the following is most likely valvular lesion associated with this infection?

A – Mitral valve stenosis

B – Mitral valve regurgitation

C – Tricuspid valve regurgitation

D – Aortic valve stenosis

E – Pulmonic valve stenosis


This patient most likely has infective endocarditis, a common complication of intravenous drug addiction. It is caused by staphylococcus infection due to multiple uses of same injection by addicts. Tricuspid regurgitation is the most common valvular lesion related to staph infection. It is characterized by pansystolic murmur, high pitched and loudest in the 4th intercostal space in the parasternal region. Mitral valve involvement is more likely related to subacute bacterial endocarditis which is mainly caused by streptococcal infection.

The correct answer is C

We got 10 Correct answers. Drawing is done and the winner is Mina Shehata

Congratulations and better luck for all of you on next question

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28 thoughts on “Medical Question of the Day- 31”

  1. Thank you Dr Haidar

  2. Thank you Dr Basma

  3. Thank you Dr Yu Genwai

  4. thank you Dr Zeeshan

  5. Step Aires and C tricuspid vaue

  6. C. Tricuspid valve regurgitation

  7. C (Trucuspid valve almost 50%)

  8. Thank you Dr Natasha

  9. Thank you Dr Divya Vani

  10. Thank you Dr Shrimantika

  11. Thank you Dr Sumon Dhar

  12. Thank you Dr Mike kempton

  13. Thank you Dr Mina Shehata

  14. Thank you Dr CP

  15. Thank you Dr Emad

  16. Thank you Dr Olusola

  17. Thank you Dr Sandipta Banerjee


  19. c

  20. C TR

  21. Mitral valve regurgitation.

  22. B. Mitral valve regurgitation

  23. C. Tricuspid valve regurgitation.

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