Igfr

ÎHCO3 reabsorption

Cl depletion ECF volume depletion K+ depletion Hypercapnia

Basic mechanisms Mediating factors

ÎHCO3 reabsorption

Cl depletion ECF volume depletion K+ depletion Hypercapnia

ÎNa+ reabsorption and consequent ÎH+ and K+ secretion

ÎH+ secretion coupled to K+ reabsorption

Net acid excretion maintained at control

ÎNa+ reabsorption and consequent ÎH+ and K+ secretion

ÎH+ secretion coupled to K+ reabsorption

Net acid excretion maintained at control

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