In medicine,<unk>  refers to the volume of blood in a patient's circulatory system. This is related to the patient's state of hydration, but is not identical to it. For instance, volume depletion can exist in an adequately hydrated person if there is loss of water into interstitial tissue (e.g. due to hyponatremia or liver failure).
Volume status
Ethnic group
Renal physiology
Performance status
Body fat percentage
Body volume index
Coronary risk profile
Body mass index