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Table 1 Classification of shock

From: Bench-to-bedside review: Resuscitation in the emergency department

  Type of shock
Parameter(s) Hypovolemic Cardiogenic Obstructive Distributive
Preload, filling pressures, end-diastolic volumes
Pump, cardiac output
Afterload, systemic vascular resistance
Systemic oxygen delivery
Systemic oxygen consumption
Systemic oxygen extraction ratio
Global oxygen balance, SvO2 or ScvO2
  1. SvO2, mixed venous oxygen saturation; ScvO2, central venous oxygen saturation.