The invention relates to a system and method for monitoring in each case at least one blood parameter of the blood of different patients, comprising a plurality of access devices for establishing in each case at least one means of access to the blood of each patient through the skin thereof, a plurality of removal devices for removing a quantity of blood from each patient in order to obtain in each case at least one blood sample, at least one blood analysis device for analysing the blood sample with respect to predeterminable blood parameters and for generating individual blood parameter data sets, a calculation device which can be used jointly for a plurality of blood parameter data sets of different patients for calculating data sets of drug parameters of the drugs to be administered to the respective patient on the basis of the individual blood parameter data sets, and a plurality of supply devices for supplying the respective drug having the calculated drug parameters.