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: 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: B

Rationale: The correct answer is B: Covering the sac with saline-soaked nonadhesive gauze. This intervention is essential in caring for an infant with myelomeningocele as it helps prevent infection and maintains a moist environment around the sac before surgical repair. Positioning the infant supine with a pillow under the buttocks (Choice A) may be suitable for comfort but is not directly related to managing the myelomeningocele. Wrapping the infant snugly in a blanket (Choice C) and applying a diaper (Choice D) are not recommended as they can increase the risk of infection and damage to the sac.

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: B

Rationale: Covering the sac with saline-soaked nonadhesive gauze is essential in the preoperative care of an infant with myelomeningocele. This practice helps prevent infection and maintains moisture around the sac before surgery, promoting optimal healing outcomes. Positioning the infant supine with a pillow under the buttocks may be uncomfortable and unnecessary. Wrapping the infant snugly in a blanket does not address the specific care needs of the myelomeningocele. Applying a diaper over the sac can increase the risk of infection and should be avoided in this case.