A nurse is caring for a client who has measles. Which of the following types of precautions should the nurse implement?

Choice A reason: Airborne precautions are required for measles because the virus is transmitted via small respiratory droplets that can remain suspended in the air for long periods. Clients with measles should be placed in a negative pressure room, and staff should wear N95 respirators to prevent inhalation of airborne particles. Choice B reason: Droplet precautions are used for larger respiratory droplets, such as those from influenza or pertussis. Measles requires stricter airborne precautions due to its high transmissibility. Choice C reason: Contact precautions are used for infections spread by direct contact, such as C. difficile or MRSA. Measles is not primarily spread by contact, so this is insufficient. Choice D reason: Protective precautions are used for immunocompromised clients to protect them from infection, not for clients with measles.