Final answer:
Reverse isolation is a precautionary measure taken to prevent the spread of organisms to a severely neutropenic client from sources outside their environment.
Step-by-step explanation:
Reverse isolation is a precautionary measure taken to prevent the spread of organisms to a severely neutropenic client. This practice helps protect the client from sources outside their environment, such as healthcare personnel, visitors, and other clients. It involves using special techniques to handle contaminated materials and the client's linens and personal items.