Correct Answer: D

Rationale: The correct answer is D because haloperidol is a dopamine receptor antagonist. By blocking dopamine receptors, it reduces the activity of dopamine in the brain, which helps in reducing disturbed thought processes. Option A is incorrect as dopamine craving is not related to the mechanism of action of haloperidol. Option B is incorrect as enhancing dopamine receptors would increase dopamine activity, opposite to the intended effect of haloperidol. Option C is incorrect as increasing cellular production of dopamine would also increase dopamine activity, contradicting the purpose of using haloperidol.

Correct Answer: B

Rationale: The correct answer is B: Enroll the patient in an exercise program that meets regularly. Regular exercise has been shown to have numerous benefits for brain health, including improving cognitive function and reducing the risk of cognitive decline. Exercise also helps in maintaining a healthy immune system by promoting the circulation of immune cells throughout the body. This can help support the protective abilities of immune cells related to Alzheimer's disease. Minimizing contact with the public during cold and flu season (Choice A) may reduce the risk of infections but does not directly address immune cell function. Providing supplements to enhance the patient's immune system (Choice C) may not be supported by scientific evidence and can potentially have adverse effects. Identifying creative ways to keep the patient mentally challenged (Choice D) is beneficial for cognitive health but does not directly target immune cell function as effectively as regular exercise.

Correct Answer: C

Rationale: The priority nursing diagnosis in this case is C: Risk for suicide. This is because the patient is exhibiting suicidal ideation, which poses an immediate threat to their safety and well-being. Suicidal ideation requires urgent intervention to ensure the patient's safety. The patient's major depression, weight gain, and lack of symptom remission from the antidepressant medication further emphasize the seriousness of the situation. Choices A, B, and D are not the priority in this scenario as they do not address the immediate risk of harm to the patient. Imbalanced nutrition and chronic low self-esteem are important concerns but do not take precedence over the risk of suicide. Hopelessness, while relevant, is not as urgent as addressing the immediate risk of suicide.

Correct Answer: B

Rationale: The correct answer is B because difficulty remembering the name of a place visited 20 years ago is a specific example of explicit memory decline. Explicit memory refers to the ability to consciously recall past events, facts, or experiences. This choice directly relates to a long-term memory retrieval issue, which is a hallmark of explicit memory decline. Choices A, C, and D do not specifically address explicit memory decline but rather touch on different memory processes such as procedural memory (A), short-term memory (C), and semantic memory (D).

Correct Answer: A

Rationale: The correct answer is A because anticipatory grief allows individuals to gradually accept the impending loss, leading to fewer feelings of guilt. This process helps the individual prepare emotionally and psychologically for the eventual loss, reducing guilt related to not being able to prevent it. Choice B is incorrect because anticipatory grief does not prevent symptoms of depression, but rather helps individuals cope with them. Choice C is incorrect as anticipatory grief does not necessarily require a longer period of time for resolution; it varies for each individual. Choice D is incorrect, as mentioned earlier, because anticipatory grief does not prevent symptoms of depression but helps individuals navigate through them.