A nurse is using analytic epidemiology when conducting a research project on a comparison group. Which of the following research projects is the nurse most likely completing?

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.

Choice A reason: Administering an antipyretic is not the next action that the nurse should initiate. An antipyretic is a medication that lowers fever, which is a common symptom of meningococcal meningitis. However, fever is not a life-threatening condition, and it may have some beneficial effects on fighting infection. The nurse should first prioritize other actions that are more urgent or critical for the client's safety and outcome.

Choice B reason: Decreasing environmental stimuli is not the next action that the nurse should initiate. Decreasing environmental stimuli is a nursing intervention that can help reduce agitation, confusion, or seizures in clients with meningococcal meningitis. However, it is not an immediate or essential action, and it may not be effective if the client's condition worsens or progresses to coma.

Choice C reason: Assessing the cranial nerves is the next action that the nurse should initiate. Cranial nerve assessment is a neurological examination that evaluates the function of 12 pairs of nerves that originate from the brainstem and control various sensory and motor functions, such as vision, hearing, smell, taste, facial expression, eye movement, swallowing, speech, and balance. Meningococcal meningitis is an inflammation of the meninges, which are the membranes that cover and protect the brain and spinal cord. Meningeal inflammation can compress or damage the cranial nerves, causing various signs and symptoms, such as headache, photophobia, diplopia, facial palsy, dysphagia, dysarthria, or nystagmus. Assessing the cranial nerves can help detect any neurological deficits or complications early, and guide appropriate interventions or referrals.

Choice D reason: Completing a vascular assessment is not the next action that the nurse should initiate. A vascular assessment is a physical examination that evaluates the blood flow and circulation in different parts of the body, such as the arms, legs, abdomen, or neck. It may include checking pulses, blood pressure, capillary refill, skin color, temperature, or edema. A vascular assessment may be relevant for some clients with meningococcal meningitis who develop septic shock or disseminated intravascular coagulation (DIC), which are serious conditions that affect blood vessels and clotting factors. However, these are not common or early manifestations of meningococcal meningitis, and they require more advanced or specialized assessments and treatments.