CRRT (Continuous Renal Replacement Therapy) displacement liquid formula calculator

The invention discloses a CRRT (Continuous Renal Replacement Therapy) displacement liquid formula calculator. The calculator comprises a shell, an input unit, an output unit, an internal unit and a power supply unit. The input unit comprises a calculator keyboard and an information prompt LCD (Liquid Crystal Display) lamp both arranged on the shell; the output unit comprises an LCD screen and a USB (Universal Serial Bus) communication interface unit; and the LCD screen is embedded on the shell and used for displaying the operational data. The calculator provided by the invention can quickly and accurately calculate the ion concentration of each constituent of the CRRT displacement liquid, can predict the degree of influence of the displacement liquid on each electrolyte, acid and base of blood in the therapeutic process, and simultaneously can predict the change of each electrolyte, acid and base of blood during each hour; and thus, the calculator can provide reference for continuous blood purification clinic