can you feel a pulse in sudden cardiac arrest
About an hour before a sudden cardiac arrest, you might feel nauseous, vomit, or have chest pain or shortness of breath. Immediate warning signs of sudden cardiac arrest include heart palpitations or a racing heartbeat, dizziness or lightheadedness, or just feeling more winded or fatigued than usual, Dr. Doshi says. But two-thirds of the time, sudden cardiac arrest has no symptoms. You simply lose consciousnessâand your pulse. Thatâs why itâs extra important that you know what to do if you see someone suddenly go down. Hereâs your course of action: First, call 911 immediately.