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 reason: Mitral valve disease is not a disorder that makes clients especially vulnerable to ozone effects, as it does not affect the respiratory system. Mitral valve disease is a condition that affects the mitral valve, which is the valve that separates the left atrium and the left ventricle of the heart. Mitral valve disease can cause the valve to become narrow (stenosis) or leaky (regurgitation), affecting the blood flow and oxygen delivery to the body. Mitral valve disease can cause symptoms such as shortness of breath, fatigue, chest pain, palpitations, and swelling of the legs.

Choice B reason: Asthma is a disorder that makes clients especially vulnerable to ozone effects, as it affects the respiratory system. Asthma is a chronic inflammatory condition that causes the airways to become narrow, swollen, and sensitive to triggers such as allergens, irritants, infections, or exercise. Asthma can cause symptoms such as wheezing, coughing, chest tightness, and difficulty breathing. Ozone is a gas that is formed when sunlight reacts with pollutants in the air. Ozone can irritate the lungs and worsen asthma symptoms by causing inflammation, bronchoconstriction, and mucus production. Ozone can also reduce lung function and increase the risk of respiratory infections.

Choice C reason: Nasal polyps are not a disorder that makes clients especially vulnerable to ozone effects, as they do not affect the respiratory system. Nasal polyps are benign growths that form in the lining of the nose or sinuses. Nasal polyps can cause symptoms such as nasal congestion, runny nose, postnasal drip, loss of smell or taste, headache, and snoring. Nasal polyps are usually associated with chronic inflammation or allergies, but their exact cause is unknown.

Choice D reason: Seasonal allergies are not a disorder that makes clients especially vulnerable to ozone effects, as they do not affect the respiratory system. Seasonal allergies are allergic reactions that occur during certain times of the year when pollen or mold spores are high in the air. Seasonal allergies can cause symptoms such as sneezing, itching, watery eyes, runny nose, and sore throat. Seasonal allergies are caused by an overreaction of the immune system to harmless substances in the environment.

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.