A nurse is caring for a toddler who has varicella zoster. Which of the following actions should the nurse take?

Choice A reason: Varicella zoster (chickenpox) is transmitted via airborne droplets and direct contact with lesions. The nurse must wear a mask to prevent inhalation of airborne particles. Airborne precautions are essential to protect healthcare workers and other patients from infection. Choice B reason: Wiping the stethoscope with alcohol-based gel is a standard infection control practice, but it is not specific to varicella zoster precautions. While important, it does not address the airborne transmission risk. Choice C reason: Positive-pressure airflow rooms are used for clients who need protection from outside contaminants, such as those who are immunocompromised. For airborne infections like varicella, negative-pressure rooms are indicated to prevent contaminated air from escaping into the hallway. Positive-pressure airflow would increase the risk of spreading the infection. Choice D reason: Allowing private playroom time does not prevent transmission. The toddler should remain in isolation until lesions have crusted over to prevent spreading the virus. This option does not address infection control needs.