Correct Answer: C

Rationale: Pain management is essential postoperatively to reduce crying, which could place strain on the surgical site. Feeding and holding the infant are allowed, but care should be taken to avoid placing pressure on the suture line.

Correct Answer: A

Rationale: Rotavirus is the most common cause of diarrhea in young children, particularly those under the age of 2. Giardia, Shigella, and Salmonella can also cause diarrhea, but in the context of young children, Rotavirus is the primary pathogen responsible for diarrheal illnesses.

Correct Answer: C

Rationale: A frozen teething ring is effective for relieving teething pain as the cold helps numb the gums and reduce inflammation, making it a safe and effective method for managing discomfort

Correct Answer: D

Rationale: A compromised immune system is a contraindication for the MMRV vaccine because it is a live attenuated vaccine and could potentially cause an infection in an immunocompromised child.

Correct Answer: A

Rationale: The correct answer is A: 'Industry vs. inferiority.' According to Erikson's theory, school-age children (approximately 6-12 years old) are in the stage of industry vs. inferiority. In this stage, children focus on developing a sense of competence and productivity. Choice B, 'Autonomy vs. shame and doubt,' is incorrect as it refers to the stage that occurs during early childhood (1-3 years old). Choice C, 'Identity vs. role diffusion,' pertains to adolescence (12-18 years old). Choice D, 'Trust vs. mistrust,' is related to the stage of infancy (0-1 year old). Therefore, option A is the most appropriate stage for school-age children in Erikson's theory.