Right before death, the most common sound is the "death rattle," a gurgling or wet noise from pooled saliva and mucus in the throat, which is usually not distressing for the person but can be upsetting for onlookers. Breathing patterns become irregular (like Cheyne-Stokes), sometimes slowing, becoming shallow, or stopping briefly, and sounds like moaning or jaw movement (mandibular breathing) can occur as the body weakens and consciousness fades, though the individual is often unaware.
Death rattle is a colloquial term, also known as terminal respiratory secretions, that describes a distinctive sound that comes from the back of the throat of an individual as they transition to the final stage of the dying process.
Some symptoms a person may experience during this time include:
This may occur as they become weaker, lose swallowing and cough reflexes, and experience decreased consciousness. The time of death from the time of onset of death rattle is reported to be between 17 to 57 hours. The key takeaway is that the presence of death rattle indicates death is very near.
Accessory muscles in the chest may be controlled by the brain steam at end of life, making breathing appear less coordinated, rapid, and labored, and can create a grunting or groaning sounds on exhalation.
As people get closer to dying, they may sleep more, become drowsy or be difficult to wake. They may fall asleep while talking. A person may slowly lose consciousness in the days or hours before death. When visiting someone with advanced cancer, be aware that visiting may be tiring and difficult for the dying person.
Background As consciousness decreases in the dying process, patients lose their ability to swallow and clear oral secretions. Air moves over these pooled secretions resulting in noisy ventilation.
But as death approaches, you may notice some of these changes.
The sound varies. It may be a crackling, wet noise that is amplified as the person breathes. In other cases, it may sound like a soft moaning with each breath, or a very loud gurgling or snoring. While the sound may be unpleasant, the person emitting the death rattle usually feels no pain or discomfort.
Several conditions can produce similar sounds or symptoms and might be mistaken for a death rattle:
We do not know exactly what people feel or see as they die. Some people who have had near-death experiences say that they saw a light or saw people they knew who had died. Other people say they felt peaceful or felt a sensation of leaving their physical body.
The 3 C's of grief are Control, Connection, and Continuity - three fundamental psychological needs that become disrupted after loss and require intentional attention during the grieving process.
This period runs from 3 to 72 hours after death. The early post-mortem phase is most frequently estimated using the classical triad of post-mortem changes – rigor mortis, livor mortis, and algor mortis.
“Our data shows that a dying brain can respond to sound, even in an unconscious state, up to the last hours of life.”
Final stage (minutes before death).
In the last minutes of life, breathing becomes shallow and may stop altogether. The heartbeat slows and eventually ceases.
Gasping respiration is also referred to as agonal respiration and the name is appropriate because the gasping breaths appear uncomfortable and raise concern that the patient is suffering and in agony.
A death rattle is produced when the patient is near death and is too weak or hypersomnolent to clear or swallow pharyngeal secretions; even small volumes of secretions will produce sounds in the resonant pharyngeal space. Death rattle usually becomes audible 24 to 48 hours before death (6,7).
Physical signs of dying
The following symptoms are often a sign that the person is about to die: They might close their eyes frequently or they might be half-open. Facial muscles may relax and the jaw can drop. Skin can become very pale.
“Actively dying” is the final stage of life, during which a person's bodily functions gradually begin to cease. Though the active dying timeline varies, this stage usually lasts between a few hours to three days. You may notice increased anxiety, restlessness, and even hallucinations at this time.
Knowing death may be near is often challenging to deal with or comprehend. Signs a person is close to dying include decreased appetite, vital sign changes, weakness, and increased sleeping.
A widely discussed idea is that the brain may continue working for about seven minutes after death, potentially giving rise to vivid flashes of memory and awareness. Recent studies suggest this may not be just folklore.
Objective To determine if functional decline differs among 4 types of illness trajectories: sudden death, cancer death, death from organ failure, and frailty.
What to do for someone who is dying
The end-of-life process is highly individual, but the final stage, known as active dying, can last from hours to several days or even weeks, with a typical "transitioning" phase often taking a few days to a couple of weeks, followed by a more intense active dying phase that might be just days or hours before death. This timeframe depends on the underlying illness, but it's marked by the body gradually slowing down, increased sleep, weakness, confusion, and changes in breathing and eating, with the final hours often involving unconsciousness.
The eight signs identified were nonreactive pupils, a decreased response to verbal stimuli, a decreased response to visual stimuli, an inability to close eyelids, drooping of the nasolabial fold, hyperextension of the neck, grunting of vocal cords, and upper gastrointestinal bleeding.