A client presents to the emergency department with muscle aches, headache, fever, and describes a recent loss of taste and smell. The nurse obtains a nasal swab for COVID-19 testing. Which action is most important for the nurse to take?

Teach the client to wear a mask, hand wash, and social distance to prevent spreading the virus

Counsel family members to monitor for illness symptoms for 2 weeks after last contact with patient

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

Report the COVID-19 result to the local health department according to Centers for Disease Control and Prevention guidelines