Failure to Monitor Anticoagulation Lab Results Leading to Supratherapeutic INR
Summary
The deficiency involves the facility’s failure to ensure timely and complete laboratory monitoring of a resident’s anticoagulation therapy. The resident had a diagnosis of thrombosis of the right upper extremity and was receiving anti-clotting medication regulated by INR (International Normalized Ratio) testing. A physician’s order dated 03/02/2026 directed that an INR blood test be drawn, and the DON stated that the blood was drawn on 03/03/2026. However, the resident’s medical record contained no results for this INR order, and the DON reported that although the laboratory orders were placed correctly, the PT (Prothrombin Time) and INR tests were not completed. The resident’s prior INR result in the record was from 01/16/2026, with an INR of 1.2, and no subsequent INR results were documented for the ordered tests. According to the DON, additional INR tests were scheduled on 03/13/2026, 03/14/2026, 03/16/2026, 03/17/2026, and 03/18/2026, but no INR results were obtained for any of those dates. The resident was later discharged from the facility and admitted to the hospital, where hospital laboratory results on 03/19/2026 showed a PT of 96.6 seconds (normal 12.3–15.1) and an INR of 12.0 (normal 0.8–1.2). The attending physician explained that a supratherapeutic INR indicates too much Coumadin, that the resident’s therapeutic INR range should have been 2–3, and that INR levels are used to regulate the resident’s anti-clotting medication. The physician stated that INR tests were ordered frequently at the facility but that no laboratory results were received. The facility did not provide a policy related to this issue at the time of the survey.
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