Correct Answer: A

Rationale: The correct answer is A: Administer antiemetics. This intervention helps to reduce nausea and vomiting by blocking the neurotransmitters responsible for triggering these symptoms. Administering antiemetics is the most direct and effective approach to address severe nausea and vomiting post-surgery. Choice B (Placing the client in a supine position) is incorrect because it does not directly address the underlying cause of nausea and vomiting. Choice C (Providing hydration) is important but may not alleviate the symptoms of severe nausea and vomiting. Choice D (Monitoring bowel sounds) is important for assessing gastrointestinal motility but does not directly address the immediate symptoms of nausea and vomiting.

Correct Answer: A

Rationale: Administering aspirin is the most appropriate intervention for a client experiencing a heart attack. Aspirin helps prevent blood clot formation, which is crucial in reducing further damage to the heart during a heart attack. It inhibits platelets from clumping together, improving blood flow to the heart muscle. Thrombolytics are used to dissolve existing blood clots, but aspirin is more preventive. Monitoring for arrhythmias is important but not the initial intervention. Administering morphine can be considered for pain relief but is not as crucial as administering aspirin to prevent further clot formation.

Correct Answer: B

Rationale: The correct answer is B because the Set Test typically involves naming 10 items based on specific categories, such as those in the FACT acronym (Fruit, Animal, Color, and Town). The nurse should inform Mr. C. that he can complete the task without any hurry, which helps reduce stress and allows him to focus on recalling the items. This approach aligns with the standard administration procedure of the Set Test, promoting a relaxed and supportive environment for the patient. Choice A is incorrect because the nurse should not offer direct assistance or mention availability to help unless Mr. C. explicitly requests it. Choice C is incorrect as prompting the patient's memory may interfere with the natural cognitive process being assessed. Choice D is incorrect because imposing a time limit can induce unnecessary pressure and potentially affect the accuracy of the results.

Correct Answer: A

Rationale: The correct answer is A: Administer epinephrine. In severe allergic reactions, such as anaphylaxis, epinephrine is the first-line treatment as it rapidly reverses life-threatening symptoms like airway constriction and low blood pressure. Antihistamines (choice B) may help with mild symptoms but are not sufficient for severe reactions. Applying a cold compress (choice C) is not effective in treating anaphylaxis. Encouraging deep breathing (choice D) is not appropriate as the client may have difficulty breathing due to airway constriction. Administering epinephrine is crucial to quickly stabilize the client's condition in a severe allergic reaction.

Correct Answer: A

Rationale: The correct answer is A: Administer fluids. In shock, the most crucial intervention is to restore perfusion by increasing circulating volume. Administering fluids helps to improve tissue perfusion and oxygen delivery. This is essential for stabilizing the client's condition. Monitoring cardiac rhythm (B) and blood pressure (C) are important, but addressing the underlying issue of hypovolemia by giving fluids takes precedence. Providing IV antibiotics (D) is not the primary intervention for shock, as the immediate focus should be on restoring blood flow and oxygen delivery.