Disturbances of Water and Electrolyte Balance
Total body water, which is distributed into the intracellular and extracellular compartments, makes up 50–60% of the body weight of the average adult patient. The intracellular compartment contains 60% of total body water, the extracellular compartment 40%. The extracellular compartment can be further subdivided into the intravascular and interstitial subcompartments, with the former containing approximately 3.5 l in the average adult patient (i.e., 4% of body weight). These fluid compartments are known to undergo dynamic changes depending on a multitude of factors such as solute or protein concentrations.
KeywordsTotal Body Water Volume Depletion Serum Sodium Level Nephrogenic Diabetes Insipidus Extracellular Compartment
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