Intravascular fluid (plasma) constitutes approximately what percentage of body weight?

Intravascular fluid, specifically referring to plasma, constitutes approximately 5% of body weight in mammals. This percentage reflects the portion of the total body fluid that is contained within the vascular system, playing a crucial role in maintaining blood volume and facilitating the transport of nutrients, hormones, and waste products throughout the body.

Understanding this percentage is essential in veterinary medicine, especially in situations involving fluid therapy or assessing hydration status in patients. The intravascular compartment is just one part of the total fluid compartments in the body, which also includes interstitial fluid and intracellular fluid. This knowledge aids in effective treatment and understanding of fluid balance in animals.

The other percentages provided represent incorrect estimations of intravascular fluid volume relative to body weight, highlighting the importance of knowing precise physiological values in medical practice.