Correct Answer: A

Rationale: The correct answer is A: petechiae, infection, fatigue. In leukemia, bone marrow involvement leads to a decrease in normal blood cell production, resulting in petechiae (small red or purple spots on the skin), increased susceptibility to infections due to decreased white blood cells, and fatigue from anemia. Choices B, C, and D are incorrect because they do not directly relate to the typical signs and symptoms of leukemia with bone marrow involvement. Headache, papilledema, irritability, muscle wasting, weight loss, decreased intracranial pressure, psychosis, and confusion are not typically associated with leukemia and bone marrow involvement.

Correct Answer: D

Rationale: The correct answer is D: Preventing cardiac overload. Infants are highly vulnerable to fluid overload, making it essential to carefully monitor IV flow rates to prevent complications such as cardiac overload. Rapid administration of IV fluids can lead to an excessive increase in circulating volume, potentially causing cardiac strain or heart failure in infants. Choices A, B, and C are incorrect. Monitoring the IV flow rate is not primarily aimed at limiting output, replacing lost fluids, or avoiding IV infiltration in this scenario. The key concern is to prevent the risk of cardiac overload due to the infant's susceptibility to fluid imbalances.

Correct Answer: B

Rationale: The correct answer is preventing infection. In caring for a child with acute lymphoblastic leukemia (ALL), preventing infection is the priority nursing intervention. Children with ALL are immunocompromised due to the disease and its treatment, making them more susceptible to infections. Administering chemotherapy, while important, is not the priority as preventing infection takes precedence to avoid complications. Monitoring for signs of bleeding and providing nutritional support are also essential components of care for a child with ALL, but preventing infection is the priority to ensure the child's safety and well-being.

Correct Answer: C

Rationale: Postpartum hemorrhage can lead to shock due to excessive bleeding. Oxygen should be provided to support oxygenation. Treatment for shock, which includes maintaining vital signs and perfusion, is crucial. Uterine massage helps prevent further bleeding by promoting uterine contraction. This combination of interventions is essential for managing postpartum hemorrhage effectively. Choices A, B, and D lack the comprehensive approach needed for managing postpartum hemorrhage, as they do not address the treatment of shock, which is vital in this scenario.

Correct Answer: A

Rationale: The nurse should suggest offering the child a choice of two juices. Giving the child a choice between two options empowers them to make a decision, fostering a sense of control, and increasing the likelihood of cooperation. This approach respects the child's autonomy while addressing the parent's concern about the child's fluid intake. Choices B, C, and D are incorrect because distracting the child, offering the glass in a firm manner, or displaying anger are not effective strategies for encouraging a 24-month-old child to drink juice.