How does dehydration occur in patients with acute pyelonephritis?

Updated: Jul 01, 2021
  • Author: Tibor Fulop, MD, PhD, FACP, FASN; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Patients should be advised to drink plenty of fluids, as avoidance of dehydration is important for both patient well-being and kidney function. When under stress, men typically drink only enough liquid to replace two thirds of the loss. When ill, individuals drink less and predispose themselves to dehydration. Unavoidable daily water loss is 1.5 L, of which approximately 500 mL is replaced by the oxidation of carbohydrates. Because patients cannot measure urine specific gravity at home, they should drink enough water or other liquid to produce light-colored urine, almost like water.

For patient education information, see Kidney Infection.

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