Correct Answer: C

Rationale: Vulvar irritation may indicate an infection or other issues and should be further evaluated. In a pubescent girl, breasts of slightly different sizes and irregular periods are common variations of normal development. Supernumerary nipple, an extra nipple, is a benign condition that is not typically concerning during puberty.

Correct Answer: C

Rationale: Urinary stasis is the most important factor in the development of UTIs because it provides an environment for bacterial growth. While poor hygiene and congenital anomalies are contributing factors, preventing urinary stasis is key in UTI prevention.

Correct Answer: C

Rationale: In Erikson's theory of psychosocial development, school-age children typically focus on developing a sense of industry. This stage, occurring during middle childhood, involves the desire to feel competent and productive in their skills and abilities. Choices A, B, and D are incorrect because establishing trust in others (A) is related to the first stage of Erikson's theory (trust vs. mistrust) which occurs in infancy, developing a sense of autonomy (B) is linked to the second stage (autonomy vs. shame and doubt) which occurs in early childhood, and establishing a sense of identity (D) is associated with the fifth stage (identity vs. role confusion) which occurs in adolescence.

Correct Answer: C

Rationale: The correct principle to guide the nurse when teaching a discipline class for parents of pre-schoolers is that discipline is meant to teach and gradually shift control from parents to the child, promoting self-discipline. This approach focuses on educating children on appropriate behavior rather than solely relying on punishment. Choice A is incorrect because using the strictest punishment is not the most effective method for discipline. Choice B is incorrect because punishment can reinforce unwanted behavior if not used appropriately. Choice D is incorrect because discipline and punishment are not synonymous; discipline involves a broader aspect of teaching and guiding behavior.

Correct Answer: C

Rationale: Siblings should be examined for VUR as it can run in families, and early detection can prevent complications. Limiting fluids is not advisable, and cranberry juice is not effective in preventing VUR. Surgery is usually not indicated for scarring reversal.