Renal Function Tests & Acute Kidney Injury (AKI) (Pathophysiology) | Sketchy Medical

Published: 28 August 2024
on channel: Sketchy Learning
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This video is all about renal function testing, focusing on creatinine and blood urea nitrogen (BUN). First, we explore creatinine, which reflects kidney health by measuring filtration efficiency at the glomerulus, and how creatinine clearance, calculated using the C=U/P equation, helps approximate glomerular filtration rate (GFR). Then, we cover BUN and how it rises when GFR decreases, indicating kidney dysfunction. We discuss how the ratios of BUN/Cr and fractional excretion of sodium (FENa %) can suggest different types of kidney dysfunction, including pre-renal, intrinsic, and post-renal acute kidney injury (AKI). Understanding these tests aids in assessing kidney health and guiding clinical decisions


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