Findings:The response rate was 60 %. Twenty-seven (69 %) RNs knew that the MPA requested them to report ADRs. Two RNs had reported an ADR. A fifth of the RNs thought they had enough knowledge about how to report an ADR. Conclusion: The low amount of reports was not due to the RNs lacking knowledge about ADRs, but due to a lack of sufficient understanding of how to report the ADRs to the MPA. Tailored education in relation to these identified knowledge gaps would most likely lead to increased reporting.