Correct Answer: B

Rationale: Lifting the baby by supporting the head and neck can cause fractures in infants with osteogenesis imperfecta. Caregivers should avoid lifting infants in this manner due to the risk of injury. Choices A, C, and D demonstrate correct understanding of how to prevent injuries in infants with osteogenesis imperfecta by avoiding excessive force on the arms or legs, preventing awkward positions, and lifting the legs in a safer manner to change diapers.

Correct Answer: D

Rationale: Preparing a toddler for a CT scan involves providing a simple explanation of the procedure to help reduce anxiety and fear. Shaving the child's head is unnecessary for a CT scan and may increase distress. Starting an IV infusion or administering sedatives may not be appropriate or necessary for all pediatric patients undergoing CT scans, especially if the child can cooperate without these interventions.

Correct Answer: C

Rationale: Discussing any other observed behaviors can help identify patterns or potential issues, which is crucial for assessing the infant's overall well-being. Option A about accidents and prevention is not pertinent to the situation described. Option B regarding playtime with other children does not address the infant's behavior and potential causes. Option D about food and vitamins is not relevant to the presented scenario and the observed behavior of the infant.

Correct Answer: A

Rationale: Von Bertalanffy's general system theory applied to families emphasizes the family as a system with interdependent, interacting parts that endure over time to ensure the survival, continuity, and growth of its components. This theory focuses on viewing the family as a dynamic system where each member's actions and behaviors impact the whole family unit. Choice B is incorrect as it focuses solely on the social system of the family, while Von Bertalanffy's theory looks at the family as a whole system. Choice C is incorrect as it discusses family developmental stages, which is not the main emphasis of Von Bertalanffy's theory. Choice D is also incorrect as it only addresses how families respond to stress, which is a narrower focus compared to the broader system view of Von Bertalanffy's theory.

Correct Answer: D

Rationale: The correct answer is D: Pubic bone malformation. Exstrophy of the bladder is commonly associated with pubic bone malformation as the condition involves a defect in the pelvic region. Imperforate anus, absence of one kidney, and congenital heart disease are not typically associated with exstrophy of the bladder, making them incorrect choices. Therefore, the nurse should primarily assess the infant for pubic bone malformation in this case.