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Patho

Renal basics

TermDefinition
Renal System Maintain fluid, electrolyte, and acid-base balance.
Filtration Major function of nephron that filters water soluble substances of the blood.
Reabsorption Major function of nephron that reabsorbs filtered nutrients, water, and electrolytes.
Secretion Major function of nephron that secretes waste products
Glomerulus Site of fluid filtration from blood to the nephron. More permeable than other capillaries in the body. Prevents passage of blood and proteins.
125 ML/ Min Glomerular filtration rate (GFR)
Blood volume One of the most important factors of GFR
Proximal convoluted tubule Reabsorbs about 2/3 of the filtered water and electrolytes. Reabsorbs all of the glucose, amino acids, and vitamins
Loop of Henle Descending loop= Transports water.Delivers concentrated filtrate to ascending loop
Blood Urea Nitrogen (BUN) Normal value 10-20 mg. Indirect measure of overall hydration.
Creatinine Normal value 0.7-1.5 mg. Reflects GFR. Most commonly used "quick" method to estimate renal function in actual patients.
Created by: whitneydpugh