Which event is most likely to introduce transient bacteremia contributing to endocarditis?

Which event is most likely to introduce transient bacteremia contributing to endocarditis?

• A. Routine dental cleaning without invasive procedures
• B. Regular exercise
• C. Vaccination
• D. Recent dental procedure

Answer: (D)

Transient bacteremia happens when bacteria cross a disrupted mucosal barrier into the bloodstream, and the mouth is a common source because it harbors viridans group streptococci that can seed damaged heart valves. Dental procedures that involve manipulation of the gums or root surfaces—where bleeding can occur—are classic events that introduce oral bacteria into the bloodstream. In contrast, routine dental cleaning without invasive steps, regular exercise, and vaccination are not typical sources of bacteremia. Therefore, a recent dental procedure is the event most likely to introduce transient bacteremia contributing to endocarditis.

Transient bacteremia happens when bacteria cross a disrupted mucosal barrier into the bloodstream, and the mouth is a common source because it harbors viridans group streptococci that can seed damaged heart valves. Dental procedures that involve manipulation of the gums or root surfaces—where bleeding can occur—are classic events that introduce oral bacteria into the bloodstream. In contrast, routine dental cleaning without invasive steps, regular exercise, and vaccination are not typical sources of bacteremia. Therefore, a recent dental procedure is the event most likely to introduce transient bacteremia contributing to endocarditis.