Procalcitonin is a peptide precursor of the hormone calcitonin, which regulates and maintains calcium equilibrium in the body. It is produced naturally in the body and serves as a marker for septic infection. This test determines the level of procalcitonin in blood and aids in the early detection of severe bacterial infections. Pro-inflammatory stimuli during bacterial infection, sepsis during operation/trauma lead to an increase in circulating procalcitonin levels beyond the normal range.?Now free sample collection at your home with discounted costs.