It is important for nurses to involve patients in their own care to enable shared decision-making. This study aimed to explore the perceptions of nurses regarding the degree to which involvement in shared decision-making takes place in clinical settings during consultations. Previous studies have shown that the use of shared decision-making by healthcare professionals can improve their caring practices and the quality of life of their patients. However, studies have also shown little evidence of the existence of shared decision-making in clinical practice. One step forward can be to clarify nurses' perceptions of patient involvement in shared decision-making. Qualitative data were collected from 10 nurses at four Swedish hospitals using a semi-structured, open-ended interview guide. The data were analyzed using inductive latent content analysis. The results showed that the care practices described by the nurses in the study are clearly different from the healthcare policy and scientific vision of shared decision-making. The nurses in the study believe that, with some exceptions, both healthcare professionals and patients prefer to leave decision-making to medical experts. In order to take advantage of the existing potential for improvement of shared decision-making in cardiologic care, healthcare professionals must be given time to seriously listen to and develop an interest in their patients' lifeworlds. Furthermore, the implementation of shared decision-making requires a mutual initiative and development of knowledge about the decision-making process from healthcare professionals and patients.