A nurse is caring for a client who has pneumonia caused by Heemophilus influenzae type B. Which of the following types of isolation precautions should the nurse implement?

A. Airborne: Airborne precautions are used for infections transmitted via tiny droplet nuclei that remain suspended in the air, such as tuberculosis or measles. Haemophilus influenzae type B is not transmitted through airborne particles, so these precautions are not required. B. Droplet: Droplet precautions are indicated for infections spread by large respiratory droplets, such as Haemophilus influenzae type B. These precautions include wearing a mask when within close proximity to the client to prevent transmission during coughing, sneezing, or talking. C. Contact: Contact precautions are used for infections transmitted by direct or indirect contact with the client or contaminated surfaces, such as MRSA or C. difficile. H. influenzae type B is not primarily spread via contact, these measures are not sufficient alone. D. Protective environment: Protective environment precautions are designed to protect immunocompromised clients from infection, using positive pressure rooms and specialized airflow. These precautions are not necessary for preventing the spread of H. influenzae type B to healthcare providers.