Correct Answer: A

Rationale: The correct answer is A: motor vehicle accidents. Motor vehicle accidents are a significant cause of spinal cord injuries among adolescents due to the high impact forces involved. While violent assault, sports injuries, and falls can also lead to spinal cord injuries, statistics show that motor vehicle accidents are a leading cause in this age group. Educating adolescents about the risks and preventive measures related to motor vehicle accidents is crucial in promoting their safety and well-being.

Correct Answer: D

Rationale: Suctioning the tracheostomy is the priority action because it ensures a patent airway before proceeding with any other tracheostomy care interventions. This step helps clear secretions and maintain airway patency, which is crucial for the client's respiratory status. Removing the inner cannula, cleaning the stoma, or changing the tracheostomy ties can follow once the airway is clear. Therefore, options A, B, and C are secondary actions compared to suctioning the tracheostomy.

Correct Answer: B

Rationale: Organizing concerned citizens to contact state representatives is likely the most effective strategy to secure state funding for the local health clinic. By mobilizing a group of citizens who are directly impacted by the clinic's services, the public health nurse can create a strong advocacy group that can influence decision-makers. Option A, running the health clinic economically and promoting its services, may be necessary but does not directly address the funding aspect. Option C, highlighting services to the media, may raise awareness but does not guarantee funding. Option D, hiring a professional lobbyist, may be costly and may not have the same grassroots impact as organizing citizens.

Correct Answer: A

Rationale: Offering vaccinations at convenient locations and times is the most effective intervention as it reduces barriers to access and makes it easier for parents to get their children vaccinated. This strategy directly addresses the issue of convenience and accessibility, which are common reasons for low vaccination rates. Distributing educational materials about vaccines (Choice B) can be helpful but may not directly address access issues. Providing incentives for getting vaccinated (Choice C) may be controversial and not sustainable in the long term. Hosting informational sessions for parents (Choice D) can be beneficial for education but may not directly improve vaccination rates as much as increasing access.

Correct Answer: B

Rationale: Atropine, an anticholinergic medication, is used preoperatively to prevent bradycardia by increasing the automaticity of the sinoatrial node during surgical anesthesia. Choice A is incorrect because atropine does not affect gastric motility. Choice C is incorrect as atropine is not primarily used to reduce secretions. Choice D is also incorrect because preventing nausea and vomiting is not the primary purpose of administering atropine in this context.