Correct Answer: A

Rationale: It is important for the nurse to provide the parents with accurate information so they can confidently explain the situation to others, helping to reduce stress and misinformation. Avoiding family and friends or minimizing the problem is not helpful.

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: A

Rationale: When assessing a child with chronic renal failure, the nurse would expect to find uremic frost as a clinical manifestation. Uremic frost, a white powdery deposit of urea on the skin, occurs in severe cases of chronic renal failure due to the accumulation of urea and other waste products in the blood. Hypotension and massive hematuria are less common in chronic renal failure, while severe metabolic acidosis is typically mild to moderate and not a prominent clinical manifestation.

Correct Answer: B

Rationale: The Numeric scale is the most appropriate tool for assessing pain in older children, like a 12-year-old, as they can comprehend and use numbers to indicate their pain levels accurately. The FLACC scale is typically used for nonverbal or preverbal children. The NIPS scale is designed for neonates and infants. The FACES scale is more commonly used in younger children who may have difficulty expressing their pain in other ways.

Correct Answer: D

Rationale: The prognosis for children with MCNS is closely related to their response to steroid therapy. A favorable response to steroids usually indicates a better prognosis, while poor response may require alternative treatments and can indicate a more complicated disease course.