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Shock is a medical emergency and requires urgent medical care. If shock is suspected, emergency help should be called immediately. While waiting for medical care, the individual should be, if safe, laid down (except in cases of suspected head or back injuries). The legs should be raised if possible, and the person should be kept warm.
In the cases of cardiogenic shock resulting from heart failure or acute hemorrhagic shock caused by a large volume of blood loss, the body constricts peripheral vessels to reverse the low arterial pressure that causes inadequate tissue perfusion. [22] With vasodilatory shock, it is difficult for the peripheral vascular smooth muscle to ...
Other causes of hemorrhagic shock include bleed from an ectopic pregnancy, bleeding from surgical intervention, vaginal bleeding [4], and splenic rupture. [7] Obstetrical, vascular, iatrogenic, and even urological sources have all been described. [3] Bleeding may be either external or internal. [3]
Neurogenic shock is caused by the loss of vascular tone normally supported by the sympathetic nervous system due to injury to the central nervous system especially spinal cord injury. [4] [6] Rupture of a hollow organ, with subsequent evacuation of contents in the peritoneal cavity could also determine neurogenic shock, a subtype of ...
This causes them to relax (vasodilation) [4] resulting in a sudden decrease in blood pressure (secondary to a decrease in peripheral vascular resistance). Neurogenic shock results from damage to the spinal cord above the level of the 6th thoracic vertebra. [5]
If arterioles dilate, vascular resistance to blood flow goes down and blood pressure goes down, leading to less perfusion and distribution of blood to organs and tissues. Now the most common type of distributive shock is septic shock, from pathogens in the blood, most commonly gram-negative pathogens.
Obstructive shock is one of the four types of shock, caused by a physical obstruction in the flow of blood. [1] Obstruction can occur at the level of the great vessels or the heart itself. [ 2 ] Causes include pulmonary embolism , cardiac tamponade , and tension pneumothorax . [ 3 ]
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.
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