Correct Answer: A

Rationale: The primary goal of community health nursing is to promote health and prevent disease. Community health nurses focus on preventive care, health promotion, and education to improve the overall health of the community. Providing care to the sick (Choice B) is part of nursing but not the primary goal of community health nursing. While research (Choice C) and developing health policies (Choice D) may be components of community health nursing, they are not the primary goal, which is centered around promoting health and preventing disease.

Correct Answer: A

Rationale: The correct answer is A: Stop smoking. Smoking causes vasoconstriction, worsening the symptoms of Raynaud's phenomenon. Quitting smoking is crucial in managing this condition effectively. Choices B, C, and D are not as directly related to the pathophysiology of Raynaud's phenomenon. While keeping feet dry and reducing stress can be beneficial for overall health, they are not as directly linked to managing Raynaud's phenomenon as smoking cessation.

Correct Answer: C

Rationale: The correct answer is C because wound care for a postoperative infection qualifies for Medicare reimbursement. Medicare typically covers skilled nursing care, like wound care, required due to a postoperative infection. Choices A, B, and D involve assessments, teaching, and evaluation, which may not always be eligible for Medicare reimbursement unless they are directly related to skilled nursing care for a specific medical condition.

Correct Answer: D

Rationale: The correct answer is 'D' because all the listed factors - cigarette smoking, a parent with adult-onset diabetes, and exposure to toxic substances in the workplace - can individually influence a person's health status. Cigarette smoking directly impacts health by increasing the risk of various diseases. Having a parent with adult-onset diabetes can also influence one's health due to genetic predisposition and lifestyle factors. Exposure to toxic substances in the workplace can lead to health issues. Choices A, B, and C are not mutually exclusive but rather represent different aspects of individual influences on health status, making 'D' the most comprehensive and accurate answer.

Correct Answer: C

Rationale: In this scenario, requesting mayors to create a task force is the most effective strategy to improve environmental health conditions in the community. Engaging with local government officials ensures the allocation of resources, coordination of efforts, and the implementation of sustainable solutions. While meeting with youth officials, parents' group leaders, religious and educational leaders are important, involving mayors in creating a task force will lead to broader community involvement and support. Informing local announcers about the project, although helpful for awareness, is not as impactful as engaging with local authorities for tangible change.