Sit or lie down and rest
Slow your breathing
Try deep, steady breaths
Sip cold water
Avoid caffeine, nicotine, alcohol, and stimulants
Loosen tight clothing
Try a gentle cough
Use a vagal maneuver only if you have been told it is safe for you
Check your pulse
Stay calm and avoid sudden movement
Seek urgent medical help if you have chest pain, fainting, severe shortness of breath, or symptoms lasting more than a few minutes
Call emergency services if the palpitations are severe, new, or happen with dizziness, weakness, or confusion