BACKGROUND: Ambulance nurses have an important role in early recognition and treatment often being the first medical contact for patients with acute chest pain. However, there is sparse knowledge on the experiences of ambulance nurses with regard to use of Prehospital Guidelines for patients with Acute Chest Pain.

AIM: To explore ambulance nurses' experiences of using prehospital guidelines for patients with acute coronary syndrome.

METHOD: A qualitative descriptive study design. Semi-structured interviews with 22 ambulance nurses recruited through purposive sampling strategy. The material was transcribed and analysed using content analysis.

RESULTS: Two main categories emerged from the results. The first category Sense of professional obligation included experiences of having an important role in caring for patients with acute chest pain. Understanding this role and the collaboration in the chain of care prompted ambulance nurses to adhere to the guidelines. However, not receiving enough feedback on the provided care made them uncertain whether to use guidelines. The second category Clinical difficulties using guidelines consisted of experiences of being surrounded by practical challenges while using guidelines. Ambulance nurses meet these challenges by relying on their clinical experience, which sometimes led to them deviating from the guidelines.

CONCLUSIONS: The ambulance nurses experienced a mixture of feeling secure and insecure when using the guidelines. Foremost, when encountering patients with unspecific chest pain, they felt a lack of feedback and an insufficient collaboration within the chain of care, which made them deviate from guidelines. To increase adherence in guidelines, post-registration education to update the knowledge and skills about guidelines for acute chest pain is needed followed by formal inter-disciplinary feedback on the care provided.