Four days after exposure to COVID-19 a client has a negative COVID-19 test result. Eight days after the negative test result, the client presents with fever, fatigue, and cough and the nurse performs a second COVID-19 test. Which action is most important for the nurse to take?

Report the COVID-19 result to the local health department according to the Center for Disease Control (CDC) guidelines.

Isolate the client from other clients, family, and healthcare workers not wearing proper personal protective equipment (PPE).

Notify the charge nurse the client will need assignment to the COVID-19 specified area of the facility.

Place the nasal swab specimen for COVID-19 directly into a biohazard bag.