A fever panel, also known as a fever workup or fever evaluation, is a diagnostic test performed to identify the underlying cause of a fever. Fever, defined as a body temperature above the normal range, is often a symptom of an underlying infection or inflammatory condition. The panel typically includes a combination of laboratory tests and imaging studies aimed at identifying pathogens such as bacteria, viruses, or parasites, as well as autoimmune disorders or malignancies that may be triggering the fever. Common components of a fever panel may include: Blood tests: Complete blood count (CBC) to assess for abnormalities in white blood cells, red blood cells, and platelets; blood cultures to detect bacterial infections; and inflammatory markers such as C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR).