Patent ID: 7133716

Claim:
A method for determining the volume of a body compartment ECV hydr hydr(t) of a patient at a time t in order to manage a hydration level of said patient comprising the steps of: determining at least one anthropometric measure X(t) of the patient at the time t; determining the extracellular water volume ECV(t) of the patient at the time; determining the intracellular water volume ICV(t) of the patient at the time t; deriving the extracellular water volume ECV basic (t) of a first compartment with weight W basic (t) of the patient at the time t by using X(t); deriving the extracellular water volume ECV sec (t) of a second compartment with weight W sec (t) of the patient at the time t by using ICV(t); deriving the volume ECV hydr hydr(t) as the extracellular water volume of a third compartment of the patient with weight W hydr (t) by using the equation ECV hydr ( t )= ECV ( t )− ECV basic ( t )− ECV sec ( t ); and managing the hydration level of said patient using said derived volume ECV hydr (t).