What is shock?
Shock is a dangerous state of collapse, which, if not controlled, can be fatal.
What causes shock?
Shock occurs when the supply of blood to the brain is reduced to such an extent that the brain cannot operate efficiently, and the vital body functions that it controls are disrupted. Shock may therefore arise in any condition that upsets the circulation of the blood, such as heavy loss of blood or body fluids (as in serious injuries, large fractures, and burns); internal bleeding from a burst appendix or perforated ulcer; heart attack, or stroke. If the blood supply to the brain is cut off entirely, the brain cannot survive for long, and the person may easily die.
How can I tell if someone is suffering from shock?
When a person goes into shock, he may feel giddy and nauseous, grow extremely pale, and perspire profusely. His skin may be cold and clammy, his vision blurred, and his breathing rapid but shallow. He may complain of thirst, become restless and anxious, and possibly lose consciousness. However, the vital thing to remember is that shock is likely to occur in any serious medical emergency and should be treated urgently without waiting for specific symptoms to appear.