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Duplicate Therapy Errors

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Potentially-serious inpatient anticoagulation medication errors for venous thromboembolism treatment are common. In 2012, our hospital addressed dalteparin dosing and duplicate therapy errors by implementing a non-mandatory inpatient dalteparin order form with weight-based dosing and a pre-checked order discontinuing existing injectable anticoagulation. The form was developed using human-centered design innovation principles: observation and deep, iterative end-user engagement. Previously, dalteparin was ordered using blank forms. We evaluated changes in dosing and duplicate therapy error rates. Three physicians independently reviewed dalteparin ordering errors the year before and after implementation. Pre-implementation, 11% of orders contained

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