Correct Answer: A

Rationale: The 'sunset sign,' characterized by downward-driven eyes, is most commonly associated with hydrocephalus. This condition causes increased intracranial pressure, leading to the eyes appearing to be forced downward. Meningitis (choice B) typically presents with symptoms such as fever, headache, and a stiff neck, but not the 'sunset sign.' Cerebral palsy (choice C) is a group of disorders affecting movement and muscle coordination, not directly related to the 'sunset sign.' Encephalitis (choice D) is inflammation of the brain, which can cause symptoms like fever, headache, and confusion, but not the specific downward eye gaze seen in the 'sunset sign.'

Correct Answer: D

Rationale: Mid-upper arm circumference is a good indicator of muscle mass and fat stores, reflecting a child's nutritional status. It is particularly useful in assessing malnutrition, as it is less affected by fluid retention or dehydration compared to other anthropometric measurements. Weight can fluctuate due to factors like hydration status, making it less reliable as a sole indicator of nutritional status. Height reflects growth but may not directly indicate current nutritional status. Head circumference is more related to brain growth and development rather than overall nutritional status.

Correct Answer: C

Rationale: Popcorn is a safe snack for a child with celiac disease as it is naturally gluten-free. Other options like pizza, pretzels, and oatmeal cookies typically contain gluten unless specifically made with gluten-free ingredients, which can exacerbate celiac symptoms. Therefore, popcorn is the best option to suggest to the child to avoid any adverse effects on their condition.

Correct Answer: C

Rationale: The correct answer is C, Respiratory syncytial virus (RSV). RSV is the leading cause of bronchiolitis, a common respiratory condition in infants that results in inflammation of the small airways in the lung. It is highly contagious and can cause severe respiratory distress in young children, particularly those under 2 years old. Choice A, Adenovirus, is not the most common cause of bronchiolitis in infants. Choice B, Influenza virus, may cause respiratory infections but is not the primary cause of bronchiolitis. Choice D, Parainfluenza virus, can cause croup and other upper respiratory infections but is not the main cause of bronchiolitis in infants.

Correct Answer: A

Rationale: Teaching about coping with stress and adjusting to chronic illness is crucial for adolescents with Crohn disease. CD is a chronic condition with no cure, so focusing on managing the disease, stress, and diet is essential for improving the adolescent's quality of life. Choice B is incorrect because Crohn disease cannot be cured surgically. Choice C is relevant but not as essential as coping with stress and chronic illness. Choice D is not a priority in teaching an adolescent with Crohn disease as it mainly focuses on preventing the spread of illness to others, which is not a significant concern with CD, and high-fiber diets may not always be suitable for individuals with this condition.