The document summarizes body fluids and renal physiology. It discusses that total body water is 40 L, of which 25 L is intracellular fluid and 15 L is extracellular fluid. Extracellular fluid includes interstitial fluid and plasma. Water intake and output should be balanced to avoid dehydration or overhydration. Fluid volumes can be measured using dye or radioactive tracers. Osmosis is the movement of water across membranes from low to high concentrations of particles. Edema occurs when fluid accumulates in tissues, usually interstitial spaces.

1. Body fluids & renal physiology Dr.M.A.M.Shaikhani.

2. Body fluids