New Technology, New Errors: How to Prime an Upgrade of an Insulin Infusion Pump
Abstract:Background: A series of use errors occurred when switching an ambulatory care clinic patient from an older model to a newer model of an ambulatory continuous subcutaneous insulin infusion pump.
Case Report: The nurse practitioner (N. P.) reviewed the new pump's mechanics with the patient, who had a 26-year history of Type 1 diabetes mellitus, and supervised the patient's programming of the pump. At bedtime, a blood sugar of > 250 mg/dL prompted the patient to give herself insulin via the pump. The next morning, she was treated at the emergency department for diabetic ketoacidosis.
Case Analysis: The pump had been improperly primed, resulting in no insulin delivery. The incident also reflected the absence of a fail-safe mechanism(s) on the pump to alert the user to the improper priming and inappropriate handoff of the patient's care. Unlike the old pump, the new pump did not require manual priming. The lack of delivery of insulin resulted in DKA, a potentially life-threatening complication of diabetes. A root cause analysis suggested several important safety issues, including skipping of steps on the patient training checklist and other shortcuts in patient training.
Discussion: The clinic developed policies and procedures, including mandatory formal training for each pump model by the certified pump trainer and for initiation of insulin pump therapy. This case illustrates the importance of a structured device selection process, provider education, patient education, and monitoring for safety and effectiveness of technological devices in care.
Document Type: Research Article
Publication date: March 1, 2007
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