Correct Answer: C

Rationale: Prednisone, an immunosuppressant, increases the child's susceptibility to infections, making infection prevention a critical nursing goal. Detecting edema and stimulating appetite are important but secondary to preventing potentially life-threatening infections.

Correct Answer: C

Rationale: Fluid restriction is often necessary to manage severe edema associated with MCNS. Increasing protein is not typically recommended due to the risk of exacerbating proteinuria, and calorie reduction is not generally needed.

Correct Answer: B

Rationale: Early treatment of cryptorchidism is essential to preserve fertility and prevent complications such as testicular cancer. Surgery is usually well-tolerated, and sexual reassignment is not typically related to this condition.

Correct Answer: B

Rationale: Dietary modification is often the first step in managing chronic constipation in children, focusing on increasing fiber and fluid intake. Other interventions like bowel cleansing and toilet training may follow if dietary changes are insufficient.

Correct Answer: D

Rationale: The correct answer is D. Preschool-age children often attribute illness to their actions, like yelling at a sibling or not following instructions. They may not understand medical causes such as exposure to infections like strep throat (choice A), dietary factors (choice B), or vitamin deficiencies (choice C). It is common for young children to connect symptoms to recent behaviors or events within their limited understanding.