Correct Answer: A

Rationale: The correct answer is A because it specifies a measurable and achievable goal related to improving cardiac function through physical activities. It follows the SMART criteria (Specific, Measurable, Achievable, Relevant, Time-bound). Option B does not provide a specific outcome, while Option C focuses on pharmaceutical approaches rather than outcomes. Option D is unrelated to the goal of improving outcomes for heart failure patients. Thus, option A is the most appropriate choice for a well-defined and relevant outcome for the care of heart failure patients.

Correct Answer: B

Rationale: The correct answer is B: Health Maintenance Organization (HMO). In an HMO, services are typically provided by a primary care physician who acts as a gatekeeper for all medical services, including referrals to specialists and diagnostic tests like mammograms. The primary care physician must authorize and order these services for them to be covered by the insurance plan. This system helps control costs and ensures coordinated care. A: Fee for Service does not require a primary care physician to authorize referrals or services. C: PPO allows patients to see out-of-network providers without referrals. D: POS plans offer more flexibility in choosing healthcare providers without requiring a primary care physician's referral.

Correct Answer: A

Rationale: The correct answer is A: Environment. Nursing theory often includes the concept of environment, which encompasses physical, social, and psychological factors influencing a patient's health. This concept helps nurses understand the context in which care is provided and how it impacts health outcomes. Incorrect choices: B: Health - While health is a fundamental aspect of nursing, it is not specific to nursing theory concepts. C: Nursing - This is a broad term encompassing the profession itself, not a specific concept within nursing theory. D: Relevance - This term is not directly associated with nursing theory concepts and does not provide a framework for understanding nursing practice.

Correct Answer: B

Rationale: The correct answer is B: Sickle cell anemia. This genetic disorder is found in individuals of African, Asian, Hispanic, and American Indian descent. Sickle cell anemia is caused by a mutation in the hemoglobin gene, leading to the production of abnormal hemoglobin. This condition is more prevalent in these ethnic groups due to historical reasons and natural selection against malaria. A: Mongolian spots are common in Asian infants but not in all the mentioned ethnicities. C: Lactose intolerance is more common in individuals of African, Asian, and Hispanic descent but not specifically in American Indians. D: Thalassemia is more prevalent in individuals of Mediterranean, African, and Southeast Asian descent, not in all the mentioned ethnicities.

Correct Answer: C

Rationale: Step 1: A manager focuses on coordinating resources, such as people, time, and materials, to achieve organizational goals. Step 2: Coordinating resources is a key responsibility of a manager, as it involves planning, organizing, and controlling to ensure efficient operations. Step 3: Leaders, on the other hand, focus on setting a vision, inspiring and motivating others to achieve goals. Step 4: While both leaders and managers play crucial roles, the distinction lies in their primary focus and responsibilities. Step 5: Therefore, the correct answer is C, as it accurately reflects the key difference between a leader and a manager.