Ischaemic heart disease in the setting of unstable type 2 diabetes mellitus and a recent insulin administration error
AI-generated summary
Veronica Roberts, 75, died from ischaemic heart disease complicated by unstable diabetes and a medication error. On 4 October 2020, her insulin dose was increased to 20 units daily, but due to Electronic Medical Record (Cerner) system failures, she received a second 20-unit dose the same afternoon in addition to her morning 15-unit dose. The prescriber failed to refresh the system to verify the new dose date, and nursing staff did not identify the duplicate dose despite an electronic alert being overridden. Contributing factors included system design flaws, alarm fatigue, and staff knowledge gaps. While the coroner could not definitively prove the medication error caused death, she found the EMR system contributed significantly. Key lessons: EMR systems require user-centred design, mandatory verification steps for high-risk medications, and standardised approaches across health services. Alert fatigue remains a persistent safety concern.
AI-generated summary and tagging — may contain inaccuracies; refer to original finding for legal purposes. Report an inaccuracy.
Electronic Medical Record (Cerner) system design flaws
Failure to refresh EMR screen to verify dose date/time
Nursing staff failure to identify duplicate dose despite electronic alert
Override of Early Medication Warning alert
Alarm fatigue
Lack of standardised medication management procedures
Staff knowledge/skills gaps regarding EMR system
Patient's unstable diabetes mellitus
Patient's complex medical history
Coroner's recommendations
Oracle Health (Cerner vendor) should progress the idea logged by Peninsula Health on 6 May 2021 for the system to warn clinicians if the first dose date/time of a new medication order lands within the minimum interval of the last time the same medication was administered, with report on feasibility and timelines
Peninsula Health should review the Electronic Medication Management – Prescribing High-Risk Medicine Guidance and eHealth High Risk Medicine Safety – Rapid Literature Review and Environmental Scan report and consider whether any further measures can be implemented to reduce high-risk medication errors
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