CALCA and Sepsis: In children with sepsis, both sMR and PCT have positive correlations with the severity of sepsis (PRISM III), low GCS, ventilatory support, use of inotropic drugs and mortality rate (r = 0.950, 0.812, 0.795, 0.732 and 0.861respectively) for sMR and (0.536, 0.473, 0.422, 0.305 and 0.474 respectively) for PCT.