When to call 911 or go to the emergency room

Take immediate action if you experience any of the following:

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• New, severe chest pain or discomfort, especially if you are short of breath, sweating, nauseated, or weak
• A fast heartbeat (more than 120 to 150 beats per minute), especially with shortness of breath
• Shortness of breath that is not relieved by rest
• Sudden weakness or inability to move your arms or legs
• Sudden onset of a severe headache
• A fainting spell with loss of consciousness