Correct Answer: C

Rationale: The correct answer is C: Decentering. Decentering is the ability to consider multiple aspects of a situation, which the child's question demonstrates. In this scenario, the child's question shows that she is thinking beyond her own experience and considering the difficulty or complexity of giving an injection from the nurse's perspective. Choices A, B, and D are incorrect. Conservation refers to understanding that certain properties of an object remain the same despite changes in its appearance. Accommodation is the process of adjusting existing knowledge or creating new mental categories to incorporate new information. Class inclusion involves understanding the relationship between a whole set and its subsets, which is not demonstrated in the child's question.

Correct Answer: D

Rationale: The correct answer is D. Vaso-occlusive crises in sickle cell anemia are characterized by painful swelling of the joints in the hands and feet (hand-foot syndrome) and tissue engorgement due to the obstruction of blood flow by sickled cells. Choices A, B, and C are incorrect because circulatory collapse, hypovolemia, cardiomegaly, systolic murmur, hepatomegaly, and intrahepatic cholestasis are not typically associated with an acute vaso-occlusive crisis in sickle cell anemia.

Correct Answer: B

Rationale: Supporting an adolescent in making decisions about their care reflects the moral value of autonomy, emphasizing the importance of respecting the patient's right to make informed choices.

Correct Answer: D

Rationale: The correct nursing action to minimize the stress of the child and family is giving a tour of the hospital unit or surgical area. Familiarizing them with the hospital environment can help reduce their anxiety by allowing them to see where the child will be staying and the surroundings. Choices A, B, and C do not directly address the need to reduce stress by providing a tangible way to alleviate anxiety through exposure to the hospital setting.

Correct Answer: B

Rationale: Developmental theory outlines the series of tasks and stages that a family goes through over its life span, helping to understand the family's development and needs over time.