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This article is the author's final published version in Annals of Internal Medicine Clinical Cases, Volume 2, Issue 7, July 2023, Article number e230345.

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Anticoagulant-related nephropathy is a type of acute kidney injury that may follow warfarin and other anticoagulants. Anticoagulant-related nephropathy has been shown to be associated with irreversible kidney injury and increased risk for morbidity. Accurate diagnosis and management remain to be challenging. We describe a case of a 62-year-old man with significant cardiac history who presented with impaired kidney function associated with supratherapeutic international normalized ratio. Kidney biopsy findings suggested anticoagulant-related nephropathy.

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