Emergency services are faced with people over the age of 75 whose frailty leads to states of agitation.To improve the quality of the care of this situation through the invention of an advanced practice nurse.A phenomenological and monocentric study from interviews with professionals intervening in emergencies about the difficulties they encountered. A thematic tree was constructed once the interviews were transcribed and coded.Five themes emerged from nine interviews, including: definition of agitation, its causes, and contributing factors. The consequences, the risks for the elderly, and the impact on care. The significance of this phenomenon. The link between agitation and frailty. Difficulties and possible measures to improve care.The data collected correspond to the data featuring in the literature and allow advanced practice nurses to pinpoint their actions.Advanced practice nurses can contribute to improving the care of the agitated elderly through primary and secondary prevention.