What is the clinical difference between hypovolemic shock and amniotic fluid embolism during c section?

Similar but differen: Hypovolemic shock is blood and fluid loss usually from bleeding causing severe low BP and cardiac arrest from loss of perfusion. Amniotic fluid embolism leads to low BP from allergic vasodilation and then bleeding from dic (disseminated intravascular coagulation) which results in hypovolemic shock and cardiac arrest. The mechanisms are similar but different.