Which nursing intervention is priority for preventing complications of rheumatic heart disease?

Choice A reason: Regular exercise benefits general health but is not the priority for preventing rheumatic heart disease complications, which primarily involve valvular damage from streptococcal infections. Antibiotic prophylaxis is critical to prevent endocarditis, making this a less urgent intervention compared to antibiotic administration. Choice B reason: Routine dental cleaning reduces infection risk but is not the priority intervention. Administering antibiotics before dental procedures prevents endocarditis in rheumatic heart disease, as oral bacteria can infect damaged valves. This makes dental cleaning secondary to antibiotic prophylaxis in priority. Choice C reason: Monitoring blood pressure is important for cardiovascular health but does not directly prevent rheumatic heart disease complications like endocarditis. Antibiotic prophylaxis before invasive procedures is the priority to protect damaged valves, making blood pressure monitoring a less critical intervention in this context. Choice D reason: Administering antibiotics as prescribed and before dental procedures is the priority to prevent bacterial endocarditis, a major complication of rheumatic heart disease. Prophylaxis protects damaged heart valves from infection during invasive procedures, making this the correct intervention to prioritize for complication prevention.