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Shock from blood loss occurs in about 1–2% of trauma cases. [34] Overall, up to one-third of people admitted to the intensive care unit (ICU) are in circulatory shock. [42] Of these, cardiogenic shock accounts for approximately 20%, hypovolemic about 20%, and septic shock about 60% of cases. [43]
Cardiogenic shock is a medical emergency resulting from inadequate blood flow to the body's organs due to the dysfunction of the heart. Signs of inadequate blood flow include low urine production (<30 mL/hour), cool arms and legs, and decreased level of consciousness.
Its utility in distinguishing types of shock has been discussed in medical literature and reference material concerning emergency medicine, [1] emergency medical services, [2] fire rescue, [3] and specialized courses such as the Comprehensive Advanced Life Support Program.
Hypovolemic shock is a form of shock caused by severe hypovolemia (insufficient blood volume or extracellular fluid in the body). [1] [2] It can be caused by severe dehydration or blood loss. [3] [2] Hypovolemic shock is a medical emergency; if left untreated, the insufficient blood flow can cause damage to organs, leading to multiple organ ...
A common type of surgical shock is hypovolemic shock, which is often caused by blood loss. [1] [2] Other types of shock include cardiogenic, obstructive and distributive. [3] [4] Failure to identify and treat the underlying cause of shock in any setting may lead to irreversible multiple organ damage, organ failure, and death. [2] [4] [1]
The physiology of obstructive shock is similar to cardiogenic shock. In both types, the heart's output of blood (cardiac output) is decreased. This causes a back-up of blood into the veins entering the right atrium. [3] Jugular venous distension can be observed in the neck. This finding can be seen in obstructive and cardiogenic shock.
Coronary Vasculature. Coronary perfusion pressure (CPP) refers to the pressure gradient that drives coronary blood pressure.The heart's function is to perfuse blood to the body; however, the heart's own myocardium (heart muscle) must, itself, be supplied for its own muscle function.
Vasodilatory shock, vasogenic shock, or vasoplegic shock is a medical emergency belonging to shock along with cardiogenic shock, septic shock, allergen-induced shock and hypovolemic shock. When the blood vessels suddenly relax, it results in vasodilation .