ekga of the ekg analysis if no termination is detected in step s 3 a transition is made to a step e 3 of a further background analysis of the ventricular fibrillation in the area ekga of the ekg analysis if it is determined in a successive step e 4 that ventricular fibrillation no longer exists a return is made to step e 1 of ventricular fibrillation analysis if it is determined in step e 4 that ventricular fibrillation continues to exist a shock is triggered in a step s 4 in the area of the system control device st after that a transition is made to an end point after which further activities such as analyses and checks can be performed in other words the progress of an analysis by a combination of an ekg and a movement analysis corresponding to the action diagrams in accordance with fig2 can be represented as follows the patient is requested for example visually acoustically or in a tactile manner to perform a bodily action which can be based on a previously specified movement pattern for example the incoming transition then includes making a switch from the appropriate decision node b 4 provided that.