Correct Answer: D

Rationale: Children with MCNS who are in remission can usually attend school and participate in normal activities with precautions to avoid infections. Home schooling may not be necessary, and this indicates a misunderstanding of the condition's management.

Correct Answer: C

Rationale: Trimethoprim-sulfamethoxazole (Bactrim) can cause side effects like rash, urticaria, and photosensitivity. Parents and the child should be educated on these potential side effects to ensure prompt recognition and management.

Correct Answer: B

Rationale: The peak age for the onset of minimal change nephrotic syndrome (MCNS) is typically between 4 and 5 years old. MCNS is the most common cause of nephrotic syndrome in children, particularly within this age range.

Correct Answer: B

Rationale: If the mother is HBsAg negative, it is recommended that the child receives the first dose of the hepatitis B vaccine at birth before discharge from the hospital. This is to provide early protection against the hepatitis B virus. The second dose of the vaccine is typically given at the first well-child visit, and the third dose is usually administered at a later date. The Advisory Committee on Immunization Practices of the Centers for Disease Control and Prevention and the Committee on Infectious Diseases of the American Academy of Pediatrics govern the recommendations for immunization, including the hepatitis B virus vaccine. Choice A is incorrect as the first dose should ideally be given at birth. Choice C is incorrect as waiting until 6 months of age may leave the child vulnerable to infection during the early months of life. Choice D is incorrect as the hepatitis B vaccine is recommended for all newborns, especially if the mother is HBsAg negative, to prevent transmission of the virus.

Correct Answer: A

Rationale: The correct answer is A. RSV is typically diagnosed by swabbing the nose and testing the secretions. This method helps confirm the presence of the respiratory syncytial virus. Choice B is incorrect because while symptoms are important in diagnosis, specific tests like swabbing for RSV do exist. Choice C is incorrect as sending a viral culture to an outside lab is not the primary method for diagnosing RSV. Choice D is a duplicate of choice B and is incorrect for the same reasons.