What does shock mean? Medical definition

Shock is different from fainting. Shock is a sudden reaction in some people. At this time, the mind is completely unclear and the body's organs will also change. Shock can lead to death, so everyone should understand why shock occurs.

Shock is different from syncope. After shock, the mind becomes dull but consciousness is not lost. It is due to the rapid changes in the circulatory system caused by the influence of some harmful factors. Due to the decrease in effective circulating blood volume and insufficient blood perfusion to organ tissues, patients show symptoms such as pale complexion, cold and clammy limbs, weak pulse, decreased blood pressure, and decreased urine volume. Clinically, shock can be divided into hemorrhagic shock, infectious toxic shock, anaphylactic shock, cardiogenic shock and traumatic shock depending on the condition.

The diagnosis of hemorrhagic shock is not difficult. Common causes include gastrointestinal bleeding, spleen rupture, and fallopian tube rupture caused by ectopic pregnancy in women. When there is a systemic infection, there will be chills and high fever first, followed by a drop in blood pressure leading to shock. The white blood cell count will increase significantly, and the diagnosis can be made through blood or bone marrow bacterial culture. In daily life, pneumonia in the elderly may worsen pathogenic bacteria toxemia due to weak body resistance, and toxic shock often occurs.

Anaphylactic shock is often related to personal allergic constitution, but drug allergy is the most common; among antibiotic shock, penicillin anaphylactic shock is the most common. In addition, allergies caused by antipyretic and analgesic tablets such as analgesic and compound aminopyrine are also common. Cardiogenic shock often occurs in patients with acute myocardial infarction, end-stage heart failure, and severe myocarditis. The patient's blood pressure suddenly drops, and there may be no symptoms of ischemic angina. This type of heart disease causes a sharp decrease in the heart's blood output, leading to shock. Trauma-induced cell tissue damage, plasma loss or even whole blood loss, nerve stimulation, secondary infection and poisoning and many other complex factors can lead to shock. Such trauma includes comminuted open fractures, splenic rupture, brain trauma and major surgery.