Answer:
Cardiac death occurs within one hour of the onset of cardiovascular symptoms.
Explanation:
The Sudden Cardiac Death (SCD) usually occurs in an unexpected way, where an individual that is apparently healthy, suddenly starts to experiment anomalies in the heart function, like irregular palpitations (arrythmia) generated by a ventricular fibrillation, which basically makes the heart lose its capacity to contract as it should. In first instance this can lead to a loss of consciousness due to the lack of oxygen being delivered to the brain, and if no emergency intervention is made, the heart will finally stop, causing the death of the person.
CPR is an emergency lifesaving method performed for dropping heartbeat. Cardiac death can happen after the occurrence of cardiovascular symptoms.
CPR is Cardiopulmonary resuscitation which is an emergency method that includes chest compressions and artificial ventilation to restore the blood flow and circulation in the heart.
Cardiac death or SCD is the unexpected and sudden stop of the heart and irregular palpitation. This leads to a decrease in the contracting capacity of the heart and is caused by ventricular fibrillation.
When the heart starts losing its contracting ability then the blood flow to the organs like the heart and brain gets hampered leading to a lack of oxygen and leading to sudden death if not given proper treatment at the time.
Therefore, option 3. cardiac death can occur after an hour best defines cardiac death.
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