1. Which is the only indication for antibiotic prophylaxis prior to dental procedures?
a. Arterial grafts.
b. Cardiac pacemakers.
c. Renal dialysis shunts.
d. Infective endocarditis.
2. Which feature of staphylococci and streptococci facilitates infective endocarditis?
d. Anaerobic respiration.
3. The risk rate of metastatic focal infection to the heart, as a result of dental treatment, is 1 per
4. Which activity produces the highest rate of bacteremia?
a. Daily dental flossing.
b. Simple dental prophylaxis.
c. Buccal anesthetic injection.
d. Nonsurgical endodontic treatment.
5. The incubation period is longest for bacteria causing a metastatic focal infection of which type?
a. Brain abscess.
b. Infective endocarditis.
c. Orthopedic joint prostheses.
d. Nonvalvular cardiovascular device.
6. Otitis media and sinusitis are responsible for which percentage of brain abscesses?
7. Each is associated with the development of cardiac valvular disorders EXCEPT
a. Marfan syndrome.
b. polycythemia vera.
c. systemic lupus erythematosus.
d. hereditary hemorrhagic telangiectasia.
8. Oral microorganisms have a resistance rate to common antibiotics of
9. The risk rate of metastatic focal infection to the brain, as a result of dental treatment, is 1 per
10. An individual with a splenectomy is least susceptible to infections over a life-time originating from
a. S. pneumoniae.
b. N. meningitidis.
c. Haemophilus influenzae.
d. Viridans group streptococci (VGS).