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Shock is the state of insufficient blood flow to the tissues of the body as a result of problems with the circulatory system. Initial symptoms of shock may include weakness, tachycardia, hyperventilation, sweating, anxiety, and increased thirst. [1] This may be followed by confusion, unconsciousness, or cardiac arrest, as complications worsen. [1]
In mechanics and physics, shock is a sudden acceleration caused, for example, by impact, drop, kick, earthquake, or explosion. Shock is a transient physical excitation. Shock describes matter subject to extreme rates of force with respect to time. Shock is a vector that has units of an acceleration (rate of change of velocity).
Cold shock response of organisms to sudden cold, especially cold water; Electric shock. Defibrillation, electric shock to restore heart rhythm; Electroconvulsive therapy or shock treatment, psychiatric treatment; Hydrostatic shock, from ballistic impact; Insulin shock or diabetic hypoglycemia, from too much insulin
Shell shock is a term that originated during World War I to describe the type of post-traumatic stress disorder (PTSD) that many soldiers experienced during the war, ...
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 .
The thousand-yard stare is sometimes described as an effect of shell shock or combat stress reaction, along with other mental health conditions. However, it is not a formal medical term . [ 1 ] [ 2 ] [ 3 ]
In economics, a shock is an unexpected or unpredictable event that affects an economy, either positively or negatively. Technically, it is an unpredictable change in exogenous factors—that is, factors unexplained by an economic model—which may influence endogenous economic variables.
In a shock wave the properties of the fluid (density, pressure, temperature, flow velocity, Mach number) change almost instantaneously. [7] Measurements of the thickness of shock waves in air have resulted in values around 200 nm (about 10 −5 in), [8] which is on the same order of magnitude as the mean free path of gas molecules. In reference ...