This essay provides a nursing reflection on a coroner inquest following the death of a 71-year-old patient, Ruth Stoll, due to a blood transfusion error. The essay uses Gibb’s reflective cycle to analyze the event, focusing on the mislabeling of blood samples that led to the transfusion of an incompatible blood type. It discusses the emotional impact on the author, an evaluation of the incident in light of healthcare standards, and an analysis of the systemic issues that contributed to the error. The reflection emphasizes the importance of accurate patient identification, proper specimen labeling, and adherence to the NMBA Standards for Practice and the Australian Commission for Quality and Safety in Healthcare (ACQSHC) guidelines. The essay concludes with an action plan to prevent similar errors, highlighting the crucial role of nurses in ensuring patient safety and minimizing medical errors. The author acknowledges that while mistakes are inevitable, strict adherence to medical protocols is paramount in healthcare.