CALCA and infection: Other studies have also demonstrated an association between rising procalcitonin and SOFA scores [24, 25]and have noted a difference in PCT values in patients with sepsis versus septic shock [26, 27].In the analysis of bacteremia vs non-bacteremic infection, this study noted a statistically significant difference in PCT values between patients with bacteremia as demonstrated by positive blood cultures as opposed to patients with non-bacteremic infection and negative blood cultures, with the former having higher procalcitonin values than the latter.