Cardiac arrest: Signs to spot & what to do immediately

Know cardiac arrest signs, act fast Radiocity By Radiocity Team Published Oct 08, 2026 [{ "selector": ".custom-gradient", "duration": "500ms", "fill": "forwards", "keyframes": [ { "offset": 0, "transform": "translateY(100px)" }, { "offset": 1, "transform": "translateY(0)" } ] }]

Know the signs Cardiac arrest is life-threatening in which the heart suddenly stops pumping effectively. Recognising it quickly can give someone a chance of survival. [{ "selector": ".custom-gradient", "duration": "500ms", "fill": "forwards", "keyframes": [ { "offset": 0, "transform": "translateY(100px)" }, { "offset": 1, "transform": "translateY(0)" } ] }]

Sudden collapse One of the clearest signs is a person suddenly collapsing or losing consciousness. They may fall without warning and fail to respond when spoken to. [{ "selector": ".custom-gradient", "duration": "500ms", "fill": "forwards", "keyframes": [ { "offset": 0, "transform": "translateY(100px)" }, { "offset": 1, "transform": "translateY(0)" } ] }]

No reponse If they don`t respond, treat it as an emergency and act immediately by calling the hospital. [{ "selector": ".custom-gradient", "duration": "500ms", "fill": "forwards", "keyframes": [ { "offset": 0, "transform": "translateY(100px)" }, { "offset": 1, "transform": "translateY(0)" } ] }]

Notice their breathing A person in cardiac arrest may stop breathing or have abnormal breathing. Gasping is not normal breathing and should not be mistaken for recovery. [{ "selector": ".custom-gradient", "duration": "500ms", "fill": "forwards", "keyframes": [ { "offset": 0, "transform": "translateY(100px)" }, { "offset": 1, "transform": "translateY(0)" } ] }]

Time for an immediate CPR Begin chest compressions if someone is unresponsive & breathing abnormally. Push hard & fast in the centre of the chest at 100–120 compressions per minute. [{ "selector": ".custom-gradient", "duration": "500ms", "fill": "forwards", "keyframes": [ { "offset": 0, "transform": "translateY(100px)" }, { "offset": 1, "transform": "translateY(0)" } ] }]

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