Shock

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shock

1. (Science: psychiatry) A sudden disturbance of mental equilibrium.

2. (Science: cardiology) A condition of profound haemodynamic and metabolic disturbance characterised by failure of the circulatory system to maintain adequate perfusion of vital organs, it may result from inadequate blood volume (hypovolaemic shock), inadequate cardiac function (cardiogenic shock) or inadequate vasomotor tone (neurogenic shock, septic shock).