Linked from
The 14 pages that link to Hypovolemic shock, each with the reason it gives.
ShockBroader topic: Fluid or blood loss lowers venous return and can sharply reduce cardiac output.
Extracellular fluidRelated: Loss of circulating extracellular fluid can impair tissue perfusion.
Internal bleedingRelated: Severe internal blood loss can leave organs without adequate blood flow.
HyperlactatemiaRelated: Poor tissue perfusion can drive lactate production in severe hypovolemia.