A nurse is reinforcing teaching with a parent of a child who has acute group A beta-hemolytic streptococci. Which of the following instructions should the nurse include in the teaching?

Choice A rationale Group A beta-hemolytic streptococci are highly contagious bacteria that can persist on surfaces. Replacing the toothbrush after 24 hours of effective antibiotic therapy is a standard recommendation to prevent reinfection or the spread of the bacteria. By this time, the antibiotic has usually lowered the bacterial load enough that the child is no longer considered contagious, but the old toothbrush may still harbor viable streptococci that could cause a recurrence. Choice B rationale Monthly intramuscular injections of benzathine penicillin G are typically reserved for the secondary prevention of rheumatic fever in patients who have already had an initial episode. For an acute case of group A beta-hemolytic streptococcus, a standard ten day course of oral antibiotics or a single one time injection is usually sufficient. Monthly injections are not the routine initial treatment for uncomplicated acute pharyngitis and would be an unnecessary burden for most pediatric patients. Choice C rationale Children with streptococcal pharyngitis are generally allowed to return to school or daycare 24 hours after starting their antibiotic treatment, provided they are afebrile. Keeping a child home for an entire week is not scientifically supported and unnecessarily disrupts their education and the parents' schedule. The rapid decrease in bacterial shedding following the first few doses of antibiotics significantly reduces the risk of transmission to others in a school environment. Choice D rationale Warm compresses applied to the neck can actually provide symptomatic relief for the lymphadenopathy and sore throat associated with streptococcal infections. There is no physiological reason to avoid them. The warmth increases local blood flow, which may help in the inflammatory process and provide comfort. Teaching should focus on supportive care such as hydration and pain management rather than restricting safe comfort measures like the application of mild heat to the neck.