CRP and Sepsis: Procalcitonin, interleukin-6, C-reactive protein, and other biological markers have been the favorites of research pursuits.[20] Procalcitonin is one such marker that has shown great promise in identifying sepsis, assessing the prognosis and severity, and guiding appropriate treatment of the illness.[21] Procalcitonin is a small molecular polypeptide and a part of the inflammatory cascade in all kinds of sepsis, which is mainly secreted by thyroid C cells under normal circumstances.