In relation to a patient with Hodgkin's disease, which situation would require immediate nursing action?

In the context of Hodgkin's disease, a fever in a patient is a significant indicator that may suggest an underlying infection or worsening of the disease itself, possibly reflecting an immune response or systemic illness. Fever can be a sign of neutropenia, often associated with chemotherapy or the disease process, placing the patient at higher risk for serious complications. Thus, when a patient presents with a fever, especially in the context of a hematologic malignancy like Hodgkin's disease, immediate nursing intervention is warranted to assess for potential infections, initiate necessary lab tests, and provide timely treatment.

The other situations, such as night sweats, fatigue, and hair loss, are commonly observed symptoms associated with Hodgkin's disease or its treatment and, while they require monitoring and management, they do not typically present the same level of immediate risk as a fever does. These symptoms may point to progression or side effects of treatment but do not necessitate the same urgent response.