Correct Answer: A

Rationale: When managing a child with an allergy to multiple food items, the most appropriate approach is to avoid all identified allergens. This is crucial to prevent allergic reactions and ensure the child's safety. Choice B, increasing dietary exposure to allergens, is incorrect as it can lead to severe allergic reactions. Choice C, administering daily antihistamines, may help manage symptoms but does not address the root cause, which is avoiding allergens. Choice D, restricting all food intake, is not a viable option as it can lead to malnutrition and other health issues.

Correct Answer: A

Rationale: The correct answer is A: Decreased urine output. When a child with diarrhea is dehydrated, they may have decreased urine output, indicating that their body is conserving fluids. This sign highlights the importance of fluid replacement to prevent worsening dehydration. Choices B, C, and D are incorrect. Increased appetite is not typically associated with dehydration but can be seen in other conditions. Warm, dry skin may be a sign of fever or other skin conditions, not specifically dehydration. Elevated blood pressure is not a common sign of dehydration in a child with diarrhea.

Correct Answer: D

Rationale: The correct answer is D: 13. There are 13 essential vitamins required in the diet of human beings, including vitamins A, C, D, E, K, and the B vitamins. Choice A (5), Choice B (8), and Choice C (10) are incorrect because they do not represent the total number of essential vitamins needed by human beings.

Correct Answer: A

Rationale: The primary goal in managing a child with chronic asthma is to achieve and maintain symptom control. This helps improve the child's quality of life by reducing asthma symptoms and exacerbations. Choice B is incorrect because avoiding all physical activity is not recommended for children with asthma; in fact, regular physical activity can be beneficial. Choice C is incorrect as increasing dietary sodium is not a primary goal in managing asthma. Choice D is incorrect because restricting medication use can lead to uncontrolled asthma symptoms and complications.

Correct Answer: A

Rationale: The correct answer is A. Persistent fever lasting more than 5 days is a hallmark symptom of Kawasaki disease, often accompanied by rash and conjunctivitis. Excessive vomiting (choice B), sudden weight gain (choice C), and decreased appetite (choice D) are not typically associated with Kawasaki disease. Therefore, choices B, C, and D can be eliminated as they do not align with the common symptoms of Kawasaki disease.