Answer:
Eyes tear or glaze over.
Pulse and heartbeat are irregular or hard to feel or hear.
Body temperature drops.
Skin on their knees, feet, and hands turns a mottled bluish-purple (often in the last 24 hours)
Breathing is interrupted by gasping and slows until it stops entirely.
Explanation:
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The rhythmic sequence at which your heart beats is called a sinus rhythm, it is when the atria and ventricles of the heart contract.