Correct Answer: A

Rationale: Providing anticipatory guidance classes to parents through public schools is the most appropriate action for the public health nurse in a rural area. This approach allows the nurse to address early prevention strategies, which are crucial in promoting health in rural populations. Choice B is incorrect because having a nurse from outside the community may not fully understand the local needs and dynamics. Choice C is wrong as focusing health spending on tertiary interventions is not cost-effective or preventive. Choice D is also incorrect because while increasing awareness about industrial pollution is important, it may not directly address the health needs of the local rural population.

Correct Answer: B

Rationale: The correct instruction the nurse should reinforce with the client undergoing radiation therapy is to avoid using perfumed lotions. This is essential to reduce the risk of skin irritation, as perfumed lotions can exacerbate skin reactions during radiation therapy. Applying sunscreen before going outside is generally a good practice but not specifically related to radiation therapy. Massaging the area daily is contraindicated during radiation therapy as it can further irritate the skin. Taking vitamin supplements with food is important for overall health but is not a specific instruction related to radiation therapy.

Correct Answer: A

Rationale: Infection and electrolyte imbalance are common complications of TPN. Infection can occur due to the invasive nature of TPN, which provides a direct route for pathogens. Electrolyte imbalances can arise from the composition of the TPN solution or improper monitoring. Hyperglycemia and sepsis (Choice B) are potential complications but are not as directly associated with TPN as infection and electrolyte imbalance. Kidney failure and hypovolemia (Choice C) are less common complications of TPN. Fluid overload and liver damage (Choice D) are potential complications but are not as frequently observed as infection and electrolyte imbalance.

Correct Answer: C

Rationale: The best intervention for a client with dementia who frequently attempts to get out of bed unsupervised is to use a bed exit alarm system (Choice C). A bed exit alarm can alert staff when the client tries to leave the bed, helping to prevent falls. Using restraints (Choice A) is not recommended as it can lead to physical and psychological harm. While having family members present (Choice B) can be beneficial, it may not be feasible at all times. Keeping the client's room dark and quiet (Choice D) may not address the immediate safety concern of the client attempting to get out of bed.

Correct Answer: A

Rationale: Corrected Rationale: Bradycardia is a common sign of hypoglycemia due to the body's response to low blood sugar. During hypoglycemia, the body releases epinephrine, leading to sympathetic nervous system activation. This can result in bradycardia as a compensatory mechanism to preserve glucose for vital organs such as the brain. Tachycardia, hypotension, and diaphoresis are more commonly associated with hypoglycemia when it progresses to severe stages and the body's compensatory mechanisms are overwhelmed.