How would a patient with infection possibly present?

• A. Current or history of fever, redness, heat
• B. Chronic dull ache without systemic signs
• C. Intermittent pain relieved by NSAIDs
• D. Pain only with coughing

Answer: (A)

Infection triggers a twofold inflammatory response: systemic fever and local signs of inflammation. Fever happens when cytokines such as IL-1 and TNF-α raise the hypothalamic set point, producing an elevated body temperature. Local redness and heat come from increased blood flow and vasodilation in the infected area as part of the inflammatory process. Seeing a current or recent fever along with redness and warmth fits infection best because it shows both systemic and local inflammatory activity. The other patterns describe noninfectious conditions or less specific pain—chronic dull ache without systemic signs suggests a degenerative or mechanical issue; intermittent pain that is relieved by NSAIDs can occur with various musculoskeletal problems; and pain only with coughing points to a thoracic or airway issue rather than a typical infectious inflammatory response.