CVS infections Flashcards
acute rheumatic fever usually follows an infection with:
a. Haemophilus Influenzae
b. Streptococcus pneumoniae
c. Streptococcus pyogenes
d. Viridans stretococci
e. Staphylococcus aureus
c. Streptococcus pyogenes
Which are the two most important criteria for the diagnosis of infective endocarditis?
- Positive blood culture
- Echocardiographic changes
The general principles of medical treatment for infective endocarditis include all of the following EXCEPT:
a. parenteral treatment
b. bacteriostatic therapy
c. prolonged duration (4 to 6 weeks)
d. confirm diagnosis
e. combination of antibiotics with synergistic activity
b. bacteriostatic therapy
- should be bactericidal
The following are possible causes of “culture negative” endocarditis EXCEPT
a. Subacute, left-sided IE
b. Gram-negative bacteria from the HACEK group
c. Use of antibiotics prior to blood culture
d. Fungal endocarditis (e.g. Aspergillus)
e. Non infective (Autoimmune) endocarditis
a. Subacute, left-sided IE
A 20 year old man has endocarditis following a dental procedure a few weeks ago. Which of the following organisms is the most likely cause of endocarditis in this case?
a. Gram negative species of the HACEK group
b. Viridans Streptococci
c. Enterococci
d. Staph aureus
e. Coag-negative Staphylococci
b. Viridans Streptococci
A 40-year-old lady who had mitral valve replacement 25 days ago develops endocarditis. Which of the following organisms is the most likely cause of endocarditis in this case?
a. Gram negative species of the HACEK group
b. Coag-negative staphylococci
c. Enterococci
d. Viridans Streptococci
e. Staph Aureus
b. Coag-negative staphylococci
A 30-year-old IV drug user presents with pulmonary emboli thought to be septic emboli from right sided endocarditis.Which of the following organisms is the most likely cause of endocarditis in this case?
a. Enterococci
b. Staph aureus
c. Coag-negative staphylococci
d. Gram negative species of the HACEK group
e. Viridans streptococci
b. Staph aureus
