Body fluid volume

Body fluid volume refers to the sum of the fluid contained within the body’s compartments, including intracellular, extracellular, plasma, and interstitial spaces. It is not a discrete molecule, receptor, or protein but a clinically important parameter regulated by physiological processes and hormones such as antidiuretic hormone, aldosterone, and atrial natriuretic peptide, primarily through actions in the kidney. Regulation is vital for maintaining blood pressure, tissue perfusion, and electrolyte balance. Changes in body fluid volume underlie multiple disease states like dehydration, edema, heart failure, and shock. Interventions typically target the physiological mechanisms and hormones controlling fluid volume, not "body fluid volume" itself. In summary, “body fluid volume” is not a canonical molecular target, and the entry is incorrect for structured molecular or drug target databases.

Other names

Total body waterextracellular fluid volumeplasma volumeblood volume

Modulation of renal sodium and water excretion; Blockade or stimulation of hormone signaling pathways (e.g., ADH, aldosterone, ANP); Alteration of renal tubular transport (e.g., diuretic inhibition of Na+/Cl– symporter)