The method involves collecting values of physiological parameters of a patient. Plausibility of each value is examined, and time-based changes of the values are determined based on a time stamp that is assigned to each value. A risk value is determined from the values of the physiological parameters of the patient and the time-based changes. The risk value is assigned to a risk group and the group is displayed. An independent claim is also included for a computer system for measuring and monitoring the medical risk of health disturbance of a patient.