Failure to Accurately Transcribe and Monitor Warfarin Therapy Resulting in Critical INR and GI Bleeding
Summary
The deficiency involves the facility’s failure to ensure a resident’s drug regimen was free from unnecessary drugs and appropriately monitored, specifically related to warfarin therapy. The resident had chronic atrial fibrillation and was discharged from the hospital on warfarin 2.5 mg orally once daily with explicit instructions for repeat INR testing and follow-up with an anticoagulation clinic (ACC). At discharge, the resident’s INR had been supratherapeutic at 5.6, warfarin was held, and then the INR decreased to 3.2 prior to discharge, with recommendations for repeat INR testing on specified dates. The facility did not correctly transcribe the hospital’s warfarin order; instead, staff entered an order for 2.5 mg (two tablets) on Mondays and Fridays and 2.5 mg (one tablet) on the remaining days, effectively giving extra warfarin doses on Mondays and Fridays based on the resident’s previous regimen rather than the new discharge instructions. The facility also failed to implement and carry out INR monitoring orders and communication with the ACC as indicated in the hospital discharge summary and as described by facility practitioners. Although the discharge summary directed ongoing INR monitoring and follow-up with the ACC, no INR orders were transcribed into the resident’s record, and no INR tests were obtained during the resident’s stay. Progress notes from the NP and PA referenced that nursing should contact the ACC for warfarin dosing and INR monitoring, and the NP documented being assured by the DON that nursing had reached out to the ACC. However, there was no documentation of ACC orders, INR results, or any INR/warfarin log entries for this resident during the relevant period. An order for PT/INR every Monday and Thursday was later entered with a start date backdated to the admission date, but this was created after the resident had already been transferred to the hospital. During this time, the resident was also receiving medications known to interact with warfarin and potentially increase INR, including vancomycin for C. difficile infection and prednisone for cough. There was no documentation that staff notified the ACC of the initiation of prednisone or that monitoring was increased in response to these additional medications. Nursing staff reported that they did not obtain any INRs for the resident and that there were no active INR orders in the electronic record while the resident was present. Ultimately, an RN found the resident with a large amount of blood in the stool and on an incontinent pad, with additional blood expelled from the rectum when the resident was repositioned and transferred to a stretcher. The resident was sent to the emergency room and was found to have a critical INR of 9.3, requiring administration of vitamin K and Kcentra to reverse the anticoagulation and prevent further bleeding.
Penalty
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