Correct Answer: C

Rationale: The most appropriate nursing diagnosis for a child with acute glomerulonephritis is 'Fluid volume excess related to decreased plasma filtration.' Acute glomerulonephritis is characterized by inflammation in the glomeruli, leading to decreased plasma filtration and retention of fluid. This results in fluid volume excess rather than deficit, making choice C the correct answer. Choice A is incorrect because acute glomerulonephritis is not primarily associated with a malignant process. Choice B is incorrect as the condition typically presents with fluid volume excess rather than deficit. Choice D is also incorrect as fluid accumulation in tissues and third spaces is not a typical manifestation of acute glomerulonephritis.

Correct Answer: A

Rationale: The correct answer is A. Most childhood cancers, such as leukemias and sarcomas, affect tissues rather than specific organs, unlike many adult cancers. Choice B is incorrect because childhood cancers can be localized or spread, similar to adult cancers. Choice C is incorrect because childhood cancers can be highly responsive to treatment, especially when diagnosed early. Choice D is incorrect because the majority of childhood cancers cannot be prevented as they are often due to genetic mutations or unknown causes.

Correct Answer: D

Rationale: The priority nursing intervention for a child with leukemia admitted to the hospital with a fever is to monitor for signs of infection. Children with leukemia are immunocompromised, making them more susceptible to infections. Monitoring for signs of infection helps in early detection and timely intervention, which is crucial in preventing complications. Administering antibiotics (choice A) may be necessary if an infection is suspected or confirmed, but the priority is to assess for signs of infection first. Administering antipyretics (choice B) may help reduce fever, but it does not address the underlying cause, which could be an infection. Providing nutritional support (choice C) is important for overall health but is not the priority when a child with leukemia presents with a fever, as infection needs to be ruled out or managed first.

Correct Answer: B

Rationale: For a child with a disorder of the posterior pituitary gland, desmopressin acetate is a medication commonly used to manage the condition by replacing the antidiuretic hormone. Instructing the parents on how to administer desmopressin acetate correctly is essential for the child's care. Choice A is incorrect because growth hormone treatment is not typically used for posterior pituitary disorders. Choice C is incorrect as treatment for this condition usually continues beyond puberty. Choice D is incorrect as acute adrenal crisis is not directly related to a disorder of the posterior pituitary gland.

Correct Answer: C

Rationale: The correct answer is administering factor VIII. Hemophilia is a genetic disorder characterized by a deficiency in clotting factors, such as factor VIII. Administering factor VIII is crucial in managing bleeding episodes in hemophiliac patients. Pain medication (Choice A) may be necessary but is not the priority in this situation. Monitoring for signs of infection (Choice B) is important for overall care but is not the priority during a bleeding episode. Ensuring a safe environment (Choice D) is also important but not the priority intervention when managing a bleeding episode in a child with hemophilia.