Part 7 · Renal Physiology and Acid–Base Balance
Same concept, other depth: Foundation →
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C = (U × V)/P. Inulin (or iohexol, iothalamate) clearance = measured GFR. Excretion = filtration − reabsorption + secretion; compare C_x with GFR: C_x < GFR → net reabsorption (glucose, urea, Na⁺); C_x > GFR → net secretion (PAH, creatinine slightly, K⁺ when loaded).
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