A nurse notes that the specific gravity of urine is lower in infants than in older children. The nurse recognizes that the rationale for this difference is related to:

a) Constant parental supervision is needed to avoid overexertion: While supervision is important, restricting all activities might limit the child's development.

b) The child needs opportunities to play with others: Encouraging social interaction and play with peers is crucial for the child's social and emotional development.

c) The parents can have the child make video calls with friends instead of playdates: Video calls can supplement but should not entirely replace physical play and interaction.

d) The child needs to understand that peers’ activities are too strenuous: This response might unnecessarily limit the child's participation in normal activities without considering their abilities and limitations.

a) Refer children with sore throats for throat cultures: Early detection and treatment of Group A streptococcal infections are crucial in preventing rheumatic fever. Throat cultures help identify the presence of streptococcal bacteria.

b) Conduct routine blood pressure screenings: While important for other health concerns, blood pressure screenings are not directly related to preventing rheumatic fever.

c) Recommend salicylates instead of ibuprofen for minor discomforts: Salicylates are not the primary intervention for preventing rheumatic fever; prompt antibiotic treatment for streptococcal infections is key.

d) Encourage routine cholesterol screenings: Cholesterol screenings are unrelated to the prevention of rheumatic fever.