Water-Electrolyte Balance

**Definition:** The balance of fluid in the BODY FLUID COMPARTMENTS; total BODY WATER; BLOOD VOLUME; EXTRACELLULAR SPACE; INTRACELLULAR SPACE, maintained by processes in the body that regulate the intake and excretion of WATER and ELECTROLYTES, particularly SODIUM and POTASSIUM.

**Tree numbers:** - G02.111.635.500 - G03.615.500 - G07.410.810.500