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In page Cardiorenal syndrome:

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Cardiac biomarkers can help to identify cardiac dysfunction in the evaluation for Cardiorenal syndrome.[citation needed] Brain-naturetic peptide (BNP) is a peptide that is elevated in the presence of cardiac stress and volume overload.[citation needed] Cardiac troponin is a biomarker that can be useful to indicate ongoing myocardial damage and stress. The use of BNP and troponin can be confounded by decreased renal clearance in patients with chronic kidney function. Despite the limitations, these biomarkers can help to identify cardiac dysfunction crucial to the diagnosis of CRS. Though less frequently used in clinical practice, Galectin-3 and ST2 (suppressor of tumorigenicity 2), markers of fibrosis and myocardial stress, can add prognostic value.[1]