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fluid balance


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(floo-id)

the state in which the amount of fluid in the body is such as to enable normal physiological functioning. The volume of fluid taken in and excreted over 24 hours should be equal, so that the overall volume of body fluid remains constant. Accurate measurement of these volumes is an essential diagnostic tool and enables rapid intervention to correct any imbalance. f. b. chart a chart providing information on a patient's state of hydration, renal function, and cardiovascular function. negative f. b. the state in which the amount of fluid lost from the body is greater than that gained (e.g. because the patient is vomiting and/or has diarrhoea). positive f. b. the state in which the volume of fluid taken into the body is greater than that lost (e.g. because of a heart or kidney disorder).

Subjects: Medicine and Health.


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