Correct Answer: B

Rationale: The correct answer is B: Signs of child abuse. When a nurse observes large welts and scars on a child, it raises concern for possible child abuse. It is crucial for the nurse to assess further for signs of abuse, document findings, and report appropriately to protect the child. Choice A, history of an injury, is not specific to potential abuse and may not provide insight into the current situation. Choice C, presence of food allergies, is not directly related to the observed welts and scars. Choice D, recent recovery from chickenpox, is also unrelated to the signs of abuse and does not impact the immediate assessment of the child's safety.

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: A

Rationale: The priority nursing diagnosis for a 3-day-old girl with Down syndrome, whose mother had no prenatal care, is imbalanced nutrition, less than body requirements related to the effects of hypotonia. Newborns with Down syndrome often experience feeding difficulties due to hypotonia, which can lead to inadequate nutrition intake. Option B is incorrect because at this age, the infant is not capable of having knowledge deficits related to a genetic disorder. Option C is incorrect as delayed growth and development are not the immediate priority in this scenario. Option D is incorrect as impaired physical mobility is not typically a priority concern for a newborn with Down syndrome.

Correct Answer: B

Rationale: Lifting the baby from under the armpits can cause fractures in infants with osteogenesis imperfecta. The correct approach is to support the baby's body and head carefully, avoiding pressure on vulnerable areas prone to fractures. Choices A, C, and D demonstrate proper awareness of caring for an infant with osteogenesis imperfecta by emphasizing caution to prevent fractures.

Correct Answer: D

Rationale: Before starting kindergarten, the child should receive boosters of DTaP, IPV, and MMR. DTaP provides protection against diphtheria, tetanus, and pertussis, IPV protects against polio, and MMR immunization covers measles, mumps, and rubella. These boosters are essential to maintain immunity and protect the child from these diseases as they enter school. Choices A, B, and C are incorrect because they do not include the recommended boosters for kindergarten entry and may leave the child susceptible to certain infections.