Procalcitonin*† (PCT) assay is intended for the quantitative determination of PCT in human serum, EDTA or lithium heparin plasma. Measurement of PCT in conjunction with other laboratory findings and clinical assessments aids in the risk assessment of critically ill patients on their first day of ICU admission for progression to severe sepsis and septic shock. The PCT assay has been FDA CLIA categorized as Moderate Complexity for use on Beckman Coulter AU480, AU680, AU5800 and DxC 700 AU chemistry analyzers.