Terminal respiratory secretions (or simply terminal secretions),
[,] known colloquially as a death rattle, are sounds often produced by someone who is near death as a result of fluids such as
saliva and
bronchial secretions accumulating in the throat and upper chest.
Those who are
dying may lose their ability to
swallow and may have increased production of bronchial secretions, resulting in such an accumulation. Usually, two or three days earlier, the symptoms of approaching death can be observed as saliva accumulates in the throat, making it very difficult to take even a spoonful of water. Related symptoms can include
shortness of breath
Shortness of breath (SOB), also medically known as dyspnea (in AmE) or dyspnoea (in BrE), is an uncomfortable feeling of not being able to breathe well enough. The American Thoracic Society defines it as "a subjective experience of breathing di ...
and rapid chest movement. While 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, such as
brain injuries.
[
It is sometimes misinterpreted as the sound of the person ]choking
Choking, also known as foreign body airway obstruction (FBAO), is a phenomenon that occurs when breathing is impeded by a blockage inside of the respiratory tract. An obstruction that prevents oxygen from entering the lungs results in oxygen depr ...
to death or gargling
Gargling is the act of bubbling liquid in the mouth. It is also the washing of one's mouth and throat with a liquid, such as mouthwash, that is kept in motion by breathing through it with a gurgling sound.
A traditional home remedy of gargling ...
.
Timing
This symptom most commonly appears sometime during the last 24 hours of the person's life, although some people live somewhat longer.
Management
The dying person is usually unaware of the noisy breathing and is not disturbed by it, but some healthcare providers attempt to minimize the sound for the emotional comfort of family members and caregivers. This may be done through repositioning the person, reducing the volume of IV fluids being given, or giving anticholinergic
Anticholinergics (anticholinergic agents) are substances that block the action of the neurotransmitter called acetylcholine (ACh) at synapses in the central and peripheral nervous system.
These agents inhibit the parasympathetic nervous syste ...
drugs to reduce secretions. In hospice and palliative care
Palliative care (derived from the Latin root , or 'to cloak') is an interdisciplinary medical caregiving approach aimed at optimizing quality of life and mitigating suffering among people with serious, complex, and often terminal illnesses. Wi ...
, drugs such as glycopyrronium, hyoscine hydrobromide (scopolamine
Scopolamine, also known as hyoscine, or Devil's Breath, is a natural or synthetically produced tropane alkaloid and anticholinergic drug that is formally used as a medication for treating motion sickness and postoperative nausea and vomit ...
) or atropine
Atropine is a tropane alkaloid and anticholinergic medication used to treat certain types of nerve agent and pesticide poisonings as well as some types of slow heart rate, and to decrease saliva production during surgery. It is typically giv ...
may be used for their anticholinergic effects to reduce secretions and minimize this effect.
See also
* Agonal respiration
* End-of-life care
End-of-life care (EoLC) refers to health care provided in the time leading up to a person's death. End-of-life care can be provided in the hours, days, or months before a person dies and encompasses care and support for a person's mental and emotio ...
References
External links
Pulmonary Breath Sounds
a page that includes a death rattle sound clip (published by East Tennessee State University
East Tennessee State University (ETSU) is a public research university in Johnson City, Tennessee. Although it is part of the State University and Community College System of Tennessee, the university is governed by an institutional Board of Tr ...
)
{{DEFAULTSORT:Death Rattle
Death
Sounds by type