The nurse is preparing to obtain a rapid coronavirus (COVID-19) test for a client who was exposed to the virus eight days ago. The client is experiencing fever, cough, and shortness of breath. Which action is most important for the nurse to take?

A. Notify the charge nurse the client will need assignment to the COVID-19 specified area of the facility: This is appropriate, but not the most immediate priority. Isolation must occur first to prevent viral spread before formal reassignment can be made. B. Isolate the client from other clients, family, and healthcare workers not wearing proper PPE: This is the most urgent infection control measure. Isolation limits transmission risk while awaiting test results and is the first step in managing suspected COVID-19 cases. C. Explain to the client to inform others that they may have been potentially exposed in the last 14 days: This is part of public health tracing but is not the nurse’s immediate clinical priority when caring for a symptomatic client. D. Update the client and family regarding the COVID-19 vaccines that are available: Vaccine education is important for prevention but not urgent during symptomatic evaluation and isolation of a potentially infectious individual.