W12-Th. iRAT Due No due date Points 0.5 Questions 5 Time Limit None Allowed Attempts Unlimited Attempt History LATEST Attempt Time Score Attempt 1 8 minutes 0.5 out of 0.5 Question 1 0.1 / 0.1 pts The condition associated with the highest risk of developing infective endocarditis is: A. Mitral valve prolapse with regurgitation B. The presence of a prosthetic heart valve C. Rheumatic fever without valvular defects D. Intravenous drug abuse  Question 2 0.1 / 0.1 pts What is the most common organism causing infective endocarditis? A. Candida albicans B. Enterococcus faecalis C. Staphylococcus aureus D. Viridans streptococcus  Question 3 0.1 / 0.1 pts Which of the following factors associated with increased mortality has the greatest negative impact on short -term prognosis? A. Increasing age B. Left-sided endocarditis C. Fungal endocarditis D. Heart failure  Question 4 0.1 / 0.1 pts Which of the following is NOT a cause of culture-negative endocarditis? A. High-inoculum of bacteria B. Administration of antibiotics pre-culture C. Fastidious isolates D. Bad isolation/identification technique  Question 5 0.1 / 0.1 pts Which of the following best defines endocarditis? A. Infection of the blood B. Infection of the endometrium C. Infection of the heart valves D. Infection of the endocrine system