A client with diabetes mellitus is admitted with an upper respiratory infection (URI). Which changes in blood glucose management should the nurse tell the client to expect?

Illness causes stress responses that increase counter-regulatory hormones like cortisol and epinephrine, leading to insulin resistance and hyperglycemia. Clients typically need increased insulin doses during illness, even if eating less. Frequent glucose monitoring is crucial during illness, not less. Caloric intake should be maintained if possible; carbohydrate-containing fluids may be recommended if solid food intake decreases. Increased fluid intake helps prevent dehydration from hyperglycemia but doesn't directly address glucose management changes.