A death rattle is a gurgling or rattle-like noise produced by the accumulation of excessive respiratory secretions in the throat.
Those who are dying may lose their ability to swallow, resulting in such an accumulation.
While it is medically established that the death rattle is a strong indication that someone is near death, it can also be produced by other problems that cause interference with the swallowing reflex, for instance brain injuries.
It is sometimes misinterpreted as the sound of the person choking to death.
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"Death rattle".
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