Correct Answer: A

Rationale: Setting up dental clinics in accessible locations is the most effective intervention to improve access to dental care. By having dental clinics in easily reachable places, community members are more likely to seek and utilize dental services. Distributing flyers may raise awareness, but it may not address the issue of physical accessibility to dental care. Offering transportation vouchers could help with transportation barriers but might not address the core issue of proximity to dental services. Partnering with local businesses to promote dental health is a good initiative, but it may not directly improve access to dental care as setting up clinics in accessible locations would.

Correct Answer: C

Rationale: Developing a safety plan is the most appropriate intervention as it helps the family prepare for potential emergencies and enhances their overall sense of security. Providing information on local crime statistics may raise awareness but does not directly address safety planning. Teaching self-defense techniques may have limited effectiveness in a high-crime area where the family may face multiple threats. Encouraging the family to move to a safer neighborhood is not always feasible due to various reasons such as financial constraints or social ties to the current community.

Correct Answer: A

Rationale: Validating that the children sent home did develop chickenpox is the most crucial initial step for the nurse. This intervention ensures that the appropriate public health measures are implemented for the containment of chickenpox. Reporting a viral endemic or confirming the number of children with symptoms may be important but are secondary to confirming the diagnosis. Determining the number of people exposed comes after confirming the diagnosis to assess the extent of the outbreak and implement necessary control measures.

Correct Answer: A

Rationale: The number of home-bound seniors visited is the best measure of the project's effectiveness as it directly reflects the reach and impact of the program. Choice B is incorrect as it does not directly relate to the effectiveness of the program for home-bound seniors. Choice C is irrelevant as the average annual income of home-bound members is not a direct measure of the program's effectiveness. Choice D, calls showing interest, is not as direct a measure as the actual visits to the home-bound seniors.

Correct Answer: B

Rationale: The correct answer is to hold the medication and contact the healthcare provider. Bradycardia (pulse rate less than 100 beats/minute) is an early sign of digoxin toxicity. It is essential to withhold digoxin and notify the healthcare provider to prevent potential adverse effects. Administering the medication (Choice A) could exacerbate the toxicity. Doubling the dose (Choice C) is inappropriate and dangerous. Increasing fluid intake (Choice D) is not indicated in this situation and does not address the issue of digoxin toxicity.