The nurse is caring for a client with multiple sclerosis. What action does the nurse implement to increase venous return, prevent stiffness, and maintain muscle strength and endurance?

Choice A: Reviewing communicable disease statistics. This is incorrect because this is an example of descriptive epidemiology, not analytic epidemiology. Descriptive epidemiology describes the distribution and patterns of health events in populations, such as the frequency, location, and time of occurrence.

Choice B: Tracking locations where family violence is increasing. This is incorrect because this is also an example of descriptive epidemiology, not analytic epidemiology. Descriptive epidemiology tracks the trends and variations of health problems in different groups or areas.

Choice C: Describing population characteristics for healthy older citizens. This is incorrect because this is another example of descriptive epidemiology, not analytic epidemiology. Descriptive epidemiology provides information about the demographic and social factors that influence health outcomes.

Choice D: Identifying factors contributing to childhood obesity. This is correct because this is an example of analytic epidemiology. Analytic epidemiology investigates the causes and associations of health events in populations, such as the risk factors, exposures, or interventions that affect health outcomes. Analytic epidemiology often uses comparison groups to test hypotheses and draw conclusions.

Choice A reason: Decreasing bright lights is an appropriate action for a nurse to take when caring for a client who has signs of meningitis, as it helps to reduce the photophobia (sensitivity to light) and headache that are common symptoms of the condition. However, this action is not the first priority, as it does not prevent the transmission of the infection or treat the underlying cause.

Choice B reason: Initiating IV access is an appropriate action for a nurse to take when caring for a client who has signs of meningitis, as it facilitates the administration of fluids, medications, and blood products that may be needed to manage the condition. However, this action is not the first priority, as it does not prevent the transmission of the infection or treat the underlying cause.

Choice C reason: Administering antibiotics is an appropriate action for a nurse to take when caring for a client who has signs of meningitis, as it helps to treat the bacterial infection that is the most common cause of the condition. However, this action is not the first priority, as it requires a prescription from the health care provider and confirmation of the diagnosis by laboratory tests such as blood culture or cerebrospinal fluid analysis.

Choice D reason: Implementing droplet precautions is the first priority action for a nurse to take when caring for a client who has signs of meningitis, as it helps to prevent the spread of the infection to other clients and staff members. Droplet precautions are a type of isolation precautions that are used for infections that are transmitted by respiratory droplets, such as meningitis, influenza, and pertussis. Droplet precautions involve wearing a surgical mask when entering the client's room, placing the client in a private room or cohorting with other clients who have the same infection, and limiting visitors and staff contact with the client.