Pt had lovenox, aspiring, and warfarin ordered by (b)(4), with notes stating that the lovenox is to be discontinued when the inr measuring warfarin anticoagulation reached aleve of 2.0.The inr had been more than 3.0 for 4 days yet pt continued to receive all three potent drugs.The pt developed gastrointestinal bleeding from the excessive anticoagulation.Despite the (b)(4) and decision support, the doctors, nurses, and pharmacy continued to provide the medications.The system is a failure in that it did not warn off the excessive anticoagulation.
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