Correct Answer: A

Rationale: The correct answer is A: Self-report of pain. Pain is a subjective experience, and the most reliable way to assess it is through the client's self-report. While nonverbal behaviors and vital signs can provide additional information, they are not as reliable as the client's own report of pain. The severity of the condition may influence the experience of pain but is not a direct indicator of the client's pain level.

Correct Answer: B

Rationale: The correct answer is B: Early detection of mental illness. Secondary prevention in community mental health care focuses on identifying mental health issues at an early stage to provide timely interventions. Choice A, teaching stress-reduction techniques, is more aligned with primary prevention aimed at preventing the onset of mental health problems. Choice C, leading support groups for clients with substance use disorder, pertains more to providing specific interventions for individuals with substance use issues rather than the general focus of secondary prevention. Choice D, rehabilitation and prevention of further issues, is more related to tertiary prevention, which involves addressing existing mental health conditions and preventing complications or recurrence.

Correct Answer: C

Rationale: The correct answer is C because white rice is a low-fiber food suitable for a low-fiber diet, making it an appropriate choice. Choices A, B, and D are incorrect because fresh pear, refried beans, and bran cereal are high-fiber foods and not suitable for a low-fiber diet.

Correct Answer: B

Rationale: The correct answer is B. The client with renal failure and high potassium levels requires immediate attention because hyperkalemia can lead to life-threatening cardiac complications. Administering sodium polystyrene sulfonate helps lower the potassium levels. Choice A, the client with pneumonia and a high WBC count, although important, does not present an immediate life-threatening condition. Choice C, the post-CABG client prescribed atorvastatin, and Choice D, the client with anemia and a hemoglobin level of 11g/dL prescribed epoetin alfa, do not require immediate intervention compared to managing hyperkalemia in a client with renal failure.

Correct Answer: A

Rationale: The correct answer is A because in a postoperative patient, it is crucial to evaluate the effectiveness of the pain interventions that have been implemented. While choices B, C, and D are important aspects of a pain assessment, they do not specifically address the key component of assessing the effectiveness of the interventions applied postoperatively.