The advancement of critical care nursing as a response to the current demands.

The current demand on health services requires that nurses play a key role, by adapting their competencies to different fields and complexity levels. The approach of situations presented by critically ill patients underpins the need for development of specialised competencies in specific areas such as patient safety, prevention and control of healthcare-associated infections, performance of specific techniques and interventions, autonomous medication management or the use of technology, among others. Spain relies on a specialist training programme that is unique worldwide. Training admission is managed through a contract as a "Resident Nurse Intern" (EIR, Enfermera Interna Residente), provided by regional healthcare services. Only 6 specialities have been established and developed, in an uneven manner and with a short provision of places, annually. Given that the specialization in critical care nursing does not exist, nurses usually self-fund their postgraduate training to enhance their opportunities career development. The development of a speciality for critical care nursing is a priority. The models proposed advocate for creating nursing roles that could cover the systemic gaps through the expansion of their competencies and the introduction of procedures that fit nursing into advanced practice, which could be achieved through Advanced Accreditation Diplomas. Simultaneously, it would be convenient to analyse how and why such a dynamic discipline in some countries became stuck in anachronistic models of the Spanish healthcare system. This analysis might contribute to move forward on the development of areas of improvement in terms of service access and quality of care.