Based on what criteria to determine a time limit as pop lifesaver is 15s?
When choking water, the victim stops breathing, slow heartbeat due to reflection, resulting in a lack of oxygen to the blood, causing increased heart rate , blood pressure. If apnea continues lasts from 20 seconds to 2-3 minutes (depending on the victim), the threshold is reached and breathing caused water reappears inhaled causing immediate laryngospasm, appeared Hurricane 2nd stop breathing, then the breath is mandatory, causing contraction of water, foreign material inhaled into the lungs. Consequently, slow down the heart rate, arrhythmia, cardiac arrest and death. So determining the time limit as pop lifesaver is 15s was reasonable for the rescue will restrict bodily injury.
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