A dentist asks you to evaluate a 42-year-old woman before tooth extraction.
1-Which of the following would prompt you to prescribe prophylactic antibiotics?
a) Midsystolic click at the left sternal border.
b) Insulin dependent diabetes.
c) a prior history of infective endocarditis.
d) a history of conestive heart failure.
e) S4 gallop.
2- Which of the following is the prophylactic antibiotic of choice for dental procedures?
a) Amoxicillin.
b) Cephalexin.
c) Penicillin.
d) Vancomycin.
e) Clindamycin.
3- In patients who aren't (IV) drug users and who don't have prosthetic valves.
Which of the following organisms is the most common cause of bacterial endocarditis?
a) Enterococcus.
b) Sterptococcus.
c) Candida.
d) Gram negative bacilli.
e) Pseudomonas.
