What does the death rattle sound like? | Signs of approaching death

This video contains a simplified, visual explanation of the causes, prognosis and treatment of the death rattle. It also contains a short audio clip of the death rattle sound.

Timecodes:
0:00 Introduction
0:07 How long does a person live after the beginning of the death rattle?
0:21 Death rattle sound
0:40 Causes
0:57 Is it painful?
1:12 Treatment
1:36 Summary

Summary:
The death rattle is a sign that a person is approaching the end of his life. A person usually lives for 23 hours after the death rattle begins.
-This occurs because as consciousness decreases, patients lose their ability to swallow and clear oral secretions. Air moves over these pooled secretions resulting in noisy breathing.
It is important to know that this is not distressing for the patient because they are non-responsive and deeply asleep at this point.