The invention relates to a system and a method for monitoring in each case at least one blood parameter of the blood of various patients by means of a plurality of access devices for in each case setting up at least one access to the blood of each patient through his skin, a plurality of extraction devices, in each case for extraction of an amount of blood from each patient in order to obtain at least one blood sample in each case, blood analysis devices (7, 9), which are used jointly for a plurality of blood samples, for analysis of predeterminable parameters of the blood from the blood sample, a common calculation device for calculation of medicament parameters for the medicaments to be prescribed to the respective patient on the basis of data records of the determined parameters of the analyzed blood, and a plurality of feed devices for feeding in the respective medicament with the calculated medicament parameters.
