Correct Answer: B

Rationale: During a vaso-occlusive crisis in sickle cell anemia, the priority nursing intervention is administering pain medication. Pain management is crucial to alleviate the intense pain experienced by the child. While administering oxygen can help improve oxygenation, it is not the most critical intervention during a vaso-occlusive crisis. Monitoring fluid intake is important for overall care but is not the immediate priority during a crisis. Encouraging physical activity is contraindicated during a vaso-occlusive crisis as it can worsen the pain and the crisis itself.

Correct Answer: A

Rationale: In this scenario, the most appropriate intervention to prevent further injury is to raise the bed's side rails when a caregiver is not present. This measure helps in preventing falls without the need for constant supervision. Choice B is not practical as continuous caregiver presence may not always be feasible. Choice C is unsafe as loose restraints can pose a strangulation risk. Choice D does not address the need for intervention when a caregiver is absent, potentially leading to an increased risk of falls.

Correct Answer: B

Rationale: Colicky behavior in infants is primarily characterized by paroxysmal abdominal pain, resulting in excessive crying and fussiness. The pain episodes are often unpredictable and can be distressing for both the infant and the parents. Inadequate peristalsis (Choice A) refers to weak or ineffective bowel movements and is not the typical cause of colic. While some infants may experience colic due to an allergic response to certain proteins in milk (Choice C), this is not the primary cause of colic behavior in all infants. Choice D, a protective mechanism designed to eliminate foreign proteins, is not a recognized cause of colic. Therefore, the correct explanation for the cause of colicky behavior in infants is paroxysmal abdominal pain.

Correct Answer: B

Rationale: The correct answer is B. While special dietary needs may be important for a child with Down syndrome, they are typically not the primary concern for a 1-month-old. The nurse would be least likely to focus on this aspect as immediate issues such as monitoring for congenital heart defects (echocardiogram), cervical spine abnormalities (radiographs), and respiratory infections are more critical in the early months. Adhering to dietary needs is important, but it is usually addressed as the child grows older and is not the priority during the infant stage.

Correct Answer: A

Rationale: Epicanthal folds are a distinctive physical feature commonly observed in individuals with Down syndrome. These are horizontal skin folds that cover the inner corners of the eyes. Webbed neck (choice B) is not typically associated with Down syndrome but can be seen in conditions like Turner syndrome. Enlarged head (choice C) is not a characteristic feature of Down syndrome; however, individuals with hydrocephalus may present with this finding. Polydactyly (choice D) is the presence of extra fingers or toes, which is not a typical feature of Down syndrome.