Correct Answer: C

Rationale: The most important health promotion brochure to provide to an obese client newly diagnosed with arteriosclerosis is one focused on decreasing cholesterol levels through diet. Arteriosclerosis is significantly influenced by excess dietary fat, especially saturated fat and cholesterol. Monitoring blood pressure at home, while important, does not directly address the underlying cause of arteriosclerosis. Smoking cessation and stress management are crucial for overall cardiovascular health, but lowering cholesterol through diet takes precedence in this scenario.

Correct Answer: D

Rationale: To ensure safe medication use, the nurse should encourage the client to call the clinic nurse or healthcare provider if any questions arise. This direct communication allows for personalized assistance and clarification tailored to the client's specific concerns. Providing Internet sites (Choice A) may lead to unreliable information, and a drug reference book (Choice B) may not address individualized questions. While the written instructions may contain information (Choice C), they may not cover all potential queries the client might have, making direct contact with the healthcare provider the most appropriate option.

Correct Answer: B

Rationale: When changing the route of administration from PO to IV, the absorption process is bypassed, leading to a more rapid onset of action of the medication and consequently a quicker effect. Choices A, C, and D are incorrect. Increased drug tolerance and higher doses are not typical outcomes of changing the route of administration. Protein binding does not increase with a change to IV administration; rather, it is the bioavailability and onset of action that are affected. Moreover, an increased therapeutic index reduces the risk of drug toxicity, contrary to what is stated in choice D.

Correct Answer: C

Rationale: The correct document the nurse should use to develop the unit's nursing guidelines for the mental health services department is ANA's Scope and Standards of Nursing Practice. This document specifically outlines the philosophy and standards of nursing practice, including psychiatric nursing. Option A, the Americans with Disabilities Act of 1990, and option D, the Patient's Bill of Rights of 1990, focus on client rights and legal protections rather than nursing practice guidelines. Option B, the ANA Code of Ethics with Interpretive Statements, provides ethical guidelines for nursing practice but does not specifically address the development of nursing guidelines for a mental health services department.

Correct Answer: B

Rationale: The correct answer is the use of careful handwashing technique. Proper handwashing is the most effective way to prevent the transmission of infectious organisms. Option A, administration of plasma expanders, addresses hypovolemia in burn patients but does not directly decrease the risk of infection. Option C, application of a topical antibacterial cream, is beneficial but not as effective as proper handwashing in preventing infection. Option D, limiting visitors, may help reduce the risk of exposure to pathogens but is not as critical as ensuring healthcare providers maintain strict hand hygiene, which is the cornerstone of infection control in any healthcare setting.