Correct Answer: A

Rationale: The most critical aspect for the nurse to include in the discharge plan for a client performing his own dressing changes at home following abdominal surgery is the demonstration of appropriate hand hygiene. Proper hand hygiene is essential to prevent the introduction of infection during dressing changes. While wound care technique, signs and symptoms of infection, and instructions for contacting the healthcare provider are all important components of the discharge plan, ensuring the client understands and practices proper hand hygiene is paramount to minimize the risk of infection. This choice takes precedence as it directly addresses infection prevention during the dressing changes, which is crucial for successful post-operative recovery.

Correct Answer: B

Rationale: The correct answer is to emphasize emptying the child's mouth in any case of possible poisoning. This action is crucial to prevent further ingestion of the poisonous substance. Choice A is incorrect because calling the Poison Control Center should be one of the first steps, not waiting until the situation is identified. Choice C is incorrect as moving the child may spread or exacerbate the effects of the toxic substance. Choice D is incorrect because inducing vomiting can be harmful if the poison is a hydrocarbon, as it may lead to aspiration.

Correct Answer: A

Rationale: The correct answer is to make sure two fingers can fit under the sleeve. This allows for proper circulation and ensures that the sleeve is not too tight, which can lead to complications such as impaired blood flow or tissue damage. Choice B is incorrect because applying the sleeve tightly can actually cause harm rather than prevent blood clots. Choice C is incorrect as snugness alone may not guarantee proper fit. Choice D is incorrect as a sleeve that is too loose can be ineffective in providing the necessary compression.

Correct Answer: A

Rationale: Pharyngeal diphtheria is transmitted via droplets, primarily through respiratory secretions. Therefore, droplet precautions are necessary to prevent the spread of the infection. Droplet precautions involve wearing a surgical mask, goggles, and a gown when within three feet of the client. Contact precautions are used for diseases transmitted by direct or indirect contact; airborne precautions are for diseases transmitted through airborne particles; protective precautions are not a standard precaution type.

Correct Answer: B

Rationale: The correct intervention for a client with hypothyroidism is to encourage frequent rest periods. Hypothyroidism often leads to fatigue, making rest essential for recovery and symptom management. Providing a high-calorie diet is not necessary unless the client has gained weight due to hypothyroidism. Restricting fluid intake is not indicated unless there are specific medical reasons for it. Increasing iodine intake is not recommended for primary hypothyroidism, as it is typically caused by autoimmune thyroiditis or other factors rather than iodine deficiency.