Intravascular Space

Clinically as effective as colloid preload for preventing hypotension from spinal anaesthesia for caesarean delivery.

Intravascular space. In a 70kg adult the intracellular space holds approximately 23 litres of fluid in comparison to 17 litres in the extracellular space where 5 litres of blood volume is in the intravascular space amato et al 2008. Fluid movement from the intravascular to interstitial and intracellular compartments occurs in the capillaries. The filtration force of the capillary hydrostatic pressure is opposed by the tissue pressure surrounding the capillaries p t.

A capillary membrane which consists of the endothelial glycocalyx endothelial cells and the subendothelial cell matrix separates the capillary intravascular space from the interstitial fluid compartment. Intravascular interstitial and intracellular. Given as a co load crystalloids fll the intravascular space as it expands secondary to the spinal anaesthesia induced sympathectomy 7.

The blood represents both the intracellular compartment the fluid inside the blood cells and the extracellular compartment the blood plasma. Haemodialysis dry weight assessment. The average volume of plasma in the average 70 kilogram or 150 pound male is approximately 3 5 liters 0 77 imp gal.