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Complications could include:
Shock is a state of physical shutdown that your body enters shock when there's not enough blood circulating blood. Call 911 if you experience confusion, clammy skin, chest pain, and nausea.
Cardiac arrest is an extremely serious condition in which your heart stops beating. Learn more about symptoms, causes, and treatment.
An airway obstruction is a blockage in the airway. It may partially or totally prevent air from getting into your lungs. This can be a life-threatening emergency.