A monitor apparatus for safety characteristic monitoring in conjunction with a mode of continuously measured blood glucose values, the apparatus comprising a processor, a memory, a data interface, an input device, and a signaling device, and the processor being configured to perform the following steps:
- providing a first set of event specific characteristics of a continuous blood glucose monitoring assigned to a first event, the first set of event specific characteristics being different from a second set of event specific characteristics of the continuous blood glucose monitoring assigned to a second event which is different from the first event;
- receiving blood glucose value data comprising continuously measured blood glucose values;
- receiving the blood glucose value data and/or characteristic values derived from the blood glucose value data;
- performing a safety check by comparing the first set of event specific characteristics to present characteristics of the continuous blood glucose monitoring derived from the blood glucose value data and/or the characteristic values;
- generating a warning signal indicating one of an event activity related to the first event shall not be started and an event activity related to the first event and started before shall not be continued, if one or more of the present characteristics do not match the assigned characteristic from the first set of event specific characteristics, otherwise generating a safety signal;
- and
- providing the warning signal or the safety signal to the signaling device for outputting an output signal according to the warning signal or the safety signal by the signaling device, the output signal comprising at least one of a visual signal and an acoustic signal.