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. 2024 Aug 12;29(6):1161–1173. doi: 10.1007/s10741-024-10424-8

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© The Author(s) 2024

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 2 — The urine sodium concentration (n=462) from urine samples collected immediately before the intravenous (IV) loop diuretic dose was administered in 285 patients with ADHF undergoing serial IV diuretic doses is presented as a histogram. These results suggest that 37% of patients would be categorized as diuretic “responders” prior to receiving an IV diuretic if a urine sodium concentration threshold of 70 mmol/L is used to identify responders. Data adapted from reference [60]