In the care of emergency patients, there are different professional groups who work together to share out the best for the patient. This work has set itself the target to work out and face the different challenges and technical skills of paramedics and qualified nursing staff. In the first part the particular historical development and current challenges are presented in summary form. The second part deals with the legal basis and the disparate activities and tasks of these two professional groups. Finally, the expertise will be worked out, explained and compared by the example of resusciation.