Shock - A Review

Abstract

Shock is a life threatening condition characterized by poor tissue perfusion with impaired cellular metabolism, manifested in turn by serious physiological abnormalities.

• The term initial or primary shock is used for transient and usually a benign vasovagal attack resulting from sudden reduction of venous return to the heart caused by neurogenic vasodilatation and peripheral pooling of blood.


• Clinically patients of primary shock suffer from attack lasting few seconds or minutes and develop brief unconsciousness, weakness, sinking sensation, pale and clammy limbs.