What is the essence of shock and what is the essence of shock?

Shock refers to the microcirculation disorder of the body caused by many reasons, there are many reasons for shock, such as massive bleeding, trauma, infection, allergies, heart failure, etc., if the body's microcirculation is disordered, it will make the microvascular blood perfusion of tissues and organs seriously insufficient, and the tissue cells are ischemia and hypoxia, thus causing the function and metabolism of important vital organs such as the heart, brain, kidneys, etc., the blood pressure of the human body will drop rapidly during shock, my pale limbs will be cold, and in severe cases, there will be coma, and even the danger of death.

Shock is a syndrome of cellular hypoxia and impaired function resulting from decreased effective circulating blood volume and tissue hypoperfusion. There are many shocks, no matter what kind of shock, a sharp decrease in effective circulating blood volume is its common feature. The maintenance of effective circulating blood volume is closely related to three factors, namely, adequate blood volume, adequate cardiac output, and appropriate peripheral vascular tone.

Each element is extremely important, and a serious abnormality in any one of these elements can lead to a decrease in the effective circulating blood volume and the development of shock. Tissue hypoxia in shock, if the consequence is due to hypoperfusion, is often effective if the tissue is provided with adequate oxygen supply. However, if hypoxia is due to direct damage to organelles (eg, in sepsis), so that tissues are unable to take in and utilize oxygen, the function of the organelles should be restored while the oxygen supply is satisfied, otherwise the shock will not improve.

Oxygen supply is insufficient and demand is increasing.

Shock is a pathological process that occurs when the body is invaded by various harmful factors, characterized by a decrease in the effective circulating blood volume of the whole body, a decrease in tissue blood perfusion, and then a disorder of cell metabolism and function, and organ dysfunction. (In simple terms, it means that the amount of blood is insufficient, or the blood vessels are dilated, resulting in the pathological process caused by the body's ischemia).

Shock due to hypovolemia is divided into:

Hypovolemic shock, traumatic shock, burn shock

Vascular-induced shock is divided into (vasodilation leading to volume depletion).

Infective shockAnaphylactic shockNeurogenic shockHeart problems, resulting in shock caused by insufficient blood supply:

Cardiogenic shock

Suddenly dizzy, the brain went blank, unconscious and unconscious and fell.

What does shock mean? What is the shock index?

Shock is a type of extremity.

a.Pathological process.

b.Pathological anti-Jane Liangying.

c.Disease. d.Pathological status.

e.Pathological reflexes.

Correct Answer: a

Shock refers to a group of clinical syndromes that lead to a significant decrease in the body's effective circulating blood volume due to various reasons, which in turn leads to insufficient perfusion of tissues and organs, and ultimately leads to cellular metabolic disorders and organ dysfunction. From a pathophysiological point of view, tissue hypoperfusion is the hemodynamic feature of shock, and tissue cell hypoxia is the essence of shock. Shock can be divided into four categories: hypovolemic shock, distributive shock, cardiogenic shock, and obstructive shock.

The more common hypovolemic shock is often more common in trauma, burns, blood loss, fluid loss, etc.; The main causes of distributive shock are infectious, neurogenic and allergic; The mainstay of cardiogenic shock is often more common in myocardial infarction, severe arrhythmias, acute myocarditis, or end-stage cardiomyopathy; The main types of obstructive shock include vena cava obstruction, cardiac tamponade, pulmonary embolism, tension pneumothorax, etc. All of the above factors will lead to a significant decrease in effective circulating blood volume in patients, which in turn will lead to tissue and organ hypoperfusion, leading to cellular metabolic disorders.