A nurse is assessing a client who reports a severe headache and stiff neck. The nurse's assessment reveals positive Kernig's and Brudzinski's signs. Which of the following actions should the nurse perform first?

Choice A reason: Discipline in the school setting for improper handwashing is not an appropriate action by the nurse, as it may not prevent the spread of influenza or promote healthy behaviors. Influenza is a viral infection that affects the respiratory system and can be transmitted by direct or indirect contact with respiratory droplets from an infected person. Handwashing is one of the most effective ways to prevent the transmission of influenza and other infectious diseases, but it requires proper technique, frequency, and duration. The nurse should not punish or blame the students for their handwashing habits but rather educate and encourage them to wash their hands with soap and water for at least 20 seconds, especially before and after eating, after using the bathroom, after coughing or sneezing, and after touching potentially contaminated surfaces.

Choice B reason: Education regarding respiratory and hand hygiene is an appropriate action by the nurse, as it helps to prevent the spread of influenza and promote healthy behaviors. The nurse should provide accurate and relevant information to the students, staff, and parents about the causes, symptoms, prevention, and treatment of influenza. The nurse should also teach and demonstrate proper respiratory and hand hygiene practices, such as covering the mouth and nose with a tissue or elbow when coughing or sneezing, disposing of used tissues in a trash can, washing hands frequently with soap and water or using alcohol-based hand sanitizer, avoiding touching the eyes, nose, and mouth, and staying away from sick people.

Choice C reason: Running a mandatory flu clinic is not an appropriate action by the nurse, as it may not be feasible, ethical, or effective in preventing influenza. Influenza vaccination is one of the best ways to prevent influenza and its complications, but it requires informed consent, adequate supply, trained personnel, and appropriate timing. The nurse cannot force or coerce anyone to receive the flu vaccine without their permission or against their wishes. The nurse should respect the autonomy and preferences of the students, staff, and parents, and provide them with evidence-based information about the benefits and risks of influenza vaccination. The nurse should also collaborate with the health department and other community partners to organize voluntary flu clinics that are accessible, affordable, and convenient for those who want to receive the vaccine.

Choice D reason: Closing the school for 6 weeks is not an appropriate action by the nurse, as it may not be necessary, practical, or beneficial in preventing influenza. Influenza outbreaks can vary in severity, duration, and impact depending on several factors, such as the strain of the virus, the level of immunity in the population, the availability of vaccines and antiviral medications, and the implementation of preventive measures. The nurse should monitor the situation closely and follow the guidance of the health authorities regarding school closure decisions. The nurse should also consider the potential consequences of school closure on the student's education, socialization, nutrition, safety, and mental health. The nurse should weigh the benefits and harms of school closure against other alternatives, such as increasing ventilation, cleaning and disinfecting surfaces, screening for symptoms, isolating sick students or staff members, reducing class size or mixing groups.

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.