Correct Answer: D

Rationale: The correct answer is D. Ginkgo biloba is commonly used to improve blood circulation and relieve symptoms of cognitive disorders like dementia. The other choices are incorrect because echinacea is used to boost the immune system, feverfew is used for migraines and headaches, and ginger is known for its anti-inflammatory properties and aiding digestion, not memory improvement.

Correct Answer: A

Rationale: The main goal of a nursing quality improvement (QI) program is to enhance patient safety. While reducing healthcare costs, ensuring regulatory compliance, and maintaining high patient satisfaction are important aspects of healthcare delivery, the primary focus of a QI program in nursing is to improve patient safety through practices such as error reduction, risk management, and enhancing the quality of care provided.

Correct Answer: B

Rationale:

Correct Answer: C

Rationale: By using expert power in the workplace, nurses increase their professional influence. Expert power is derived from an individual's knowledge, skills, or expertise in a particular area. This allows nurses to influence others based on their competence and credibility, rather than through political skills (choice A), reward power (choice B), or the combination of power and politics (choice D). While political skills and understanding power dynamics can be beneficial, expert power is particularly effective in enhancing a nurse's professional influence.

Correct Answer: D

Rationale: Various factors can influence successful communication. Cultural background is crucial as different cultures may have distinct communication styles and norms. Organizational structure plays a role by determining the flow of information within an organization. The method of communication chosen can impact the clarity and effectiveness of the message being conveyed. Therefore, all the options provided - cultural background, organizational structure, and method of communication - can affect successful communication, making 'All of the above' the correct answer.