What are the clinical manifestations of shock? What factors will cause people to be shocked?

Shock can be divided into three stages: microcirculation ischemia, microcirculation congestion and microcirculation failure, and different stages have different manifestations. Also known as the early stage of shock, there will be symptoms such as pallor, cold sweat, accelerated pulse, decreased urine output, irritability and cold limbs. Blood accounts for about 7% to 8% of our normal body fluids. It can effectively circulate the body and maintain blood pressure.

When the human body loses a lot of blood under the action of some diseases or other factors, the effective circulating blood volume in the body decreases rapidly, and the tissues and organs cannot circulate normally and effectively, which may lead to shock. Shock is an acute circulatory failure caused by various strong pathogenic factors, which is characterized by microcirculation disturbance, insufficient perfusion of important organs, imbalance of cell function and metabolism, thus causing systemic critical cases. The main clinical manifestations of shock are: decreased blood pressure, pale face, cold skin, cold sweat, weak pulse, decreased urine output or even indifference. During the progressive stage of shock, the patient's blood pressure and pulse pressure gradually decreased, and the central nervous system became dysfunctional, tachycardia and even coma.

When the acute blood loss exceeds 20% of the body's blood volume, hemorrhagic shock will occur. Shock caused by severe diarrhea and vomiting also falls into this category. Toxic shock is mainly seen in severe bacterial infections and septicemia, and its mortality rate is 30% to 80%. Anaphylactic shock, which occurs in allergic patients, will stimulate the release of vasoactive substances in tissues, leading to vasodilation and reduced effective blood circulation. This is also called refractory and irreversible. Patients will have intractable hypotension, and intravenous infusion is very difficult.

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