Learn ways to prevent heart disease, falls, injuries, dehydration, and other causes of shock. If you have a known allergy (for example, to insect bites or stings), carry an epinephrine pen. Your doctor will teach you how and when to use it.

Once someone is already in shock, the sooner shock is treated, the less damage there may be to the person's vital organs (like the kidney, liver, and brain). Early first aid and emergency medical help can save his or her life.