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Renal Blood Flow

Meaning

Renal Blood Flow (RBF) is the volume of blood delivered to the kidneys per unit of time, a crucial physiological parameter reflecting both systemic circulatory health and kidney function. The kidneys, highly vascular organs, require a robust and stable RBF to perform their primary roles of waste excretion, electrolyte balance, and regulation of blood volume and pressure. In hormonal health, RBF is indirectly influenced by and influences the Renin-Angiotensin-Aldosterone System (RAAS), which is a major regulator of fluid and electrolyte homeostasis. Maintaining adequate RBF is essential for the proper clearance of hormone metabolites and for overall fluid balance.