The last hours: breathing changes, death rattle, terminal restlessness

The last 24 hours are where families who've never sat with a dying person get hit hardest. The breathing sounds wrong. The patient seems to be choking. The rattling fills the room. None of it is what it looks like, and none of it is suffering in the way the sound suggests. This article is the field guide to what you'll hear and see, and what the hospice nurse will do about it.

For the broader timeline, see signs that death is approaching. For the moment itself, the moment of death: what happens.

Cheyne-Stokes breathing

This is the pattern that scares families first.

Your parent breathes shallowly for a few seconds. The breathing slows. Then it stops. Ten seconds. Twenty. Sometimes thirty or forty. You lean forward, certain this is it, then a sudden series of rapid shallow breaths starts up. Then it slows again. Then another long pause.

The cycle is called Cheyne-Stokes respiration. It's caused by the brain's CO2 sensors firing late as the brainstem slows. The patient doesn't experience the pauses. There's no air hunger. No struggle.

The pattern often starts a day or two before death and intensifies in the last 12 hours. The pauses get longer. Eventually one pause doesn't end. That's usually the death.

What you can do: nothing about the breathing itself. Sit. Time the pauses if it helps you stay calm, or don't. Many families end up holding the patient's hand through each cycle. There's no wrong way to be in the room.

The death rattle

The wet, rattling sound that comes from the back of the throat in the last hours is the death rattle. It's caused by saliva and bronchial secretions pooling at the top of the airway because the patient can no longer swallow or cough them clear. Air moving past the pool produces the rattle.

The sound varies. Some patients have a soft burble. Some sound like a coffee machine. Some have it for ten minutes; some have it for ten hours. It's almost always louder for the family than it is uncomfortable for the patient, who is by this stage unconscious or close to it.

Hospice nurses treat the rattle in two ways:

Repositioning. Turning the patient onto their side, or raising the head of the bed, drains the secretions away from the airway opening. This is the first thing the nurse will do, and the first thing you can do if the nurse isn't there yet. Use pillows to keep the patient stable in the new position.

Anticholinergic medication. A subcutaneous injection of hyoscine butylbromide (Buscopan) or hyoscine hydrobromide dries up new secretion production. It doesn't clear what's already there. It works best when started early, before the rattle is loud. Most home hospice teams (HCA, Dover Park outreach, Assisi, Bright Vision) leave a pre-drawn syringe of hyoscine at the bedside in the last days so a nurse can give it within minutes.

What hospice nurses do not do, and what families sometimes ask for, is suctioning. Putting a suction catheter down the throat at this stage stimulates more secretion production, can cause bleeding in the fragile airway, and distresses a patient who can still feel the gag reflex even when unresponsive. The nurse will say no to suctioning and they're right to.

What you can do: keep mouth care going. Damp swabs (the orange foam-tipped ones in every hospice kit) every hour or two. A smear of lip balm. Keep the head of the bed raised about 30 degrees. Talk to the patient in a normal voice. Hearing is intact until very late.

Terminal restlessness

Around a third of dying patients become agitated in the last 24 to 72 hours. Plucking at the bedsheets, picking invisible threads out of the air, trying to sit up or get out of bed, calling out, sometimes shouting. Some are confused and combative. Some seem to be reaching for something only they can see.

The medical term is terminal restlessness or terminal agitation. The causes are mixed: uncontrolled pain, a full bladder behind a kinked catheter, constipation, medication accumulation in failing kidneys, low oxygen, brain metastases, anxiety, or sometimes nothing identifiable at all.

What hospice nurses do, in order:

Check the reversible causes first. Is the catheter draining? When was the last bowel movement? Is the morphine syringe driver running, or has the line slipped? Is there a fever? A bladder scan, a catheter flush, or a pain breakthrough dose often settles the patient within 20 minutes.

Sedate if needed. Subcutaneous midazolam (Hypnovel, Dormicum) is the first-line drug for terminal restlessness in Singapore hospice practice. A starting dose of 2.5 to 5 mg subcutaneously, repeated as needed, usually settles the patient within 10 to 20 minutes. If midazolam alone isn't enough, haloperidol (Haldol) gets added for the delirium component. In refractory cases, the team may start a continuous syringe driver with midazolam over 24 hours.

This is palliative sedation, not euthanasia. The intent is comfort. The dose is titrated to settle the agitation, not to hasten death. Most patients on palliative sedation continue breathing for hours or days, sometimes longer than the family expected.

What you can do: keep the room dim, quiet, and uncluttered. Voices low. One or two people at the bedside, not six. Touch on the hand or forearm tends to soothe; touch on the chest or face can startle. Don't try to restrain a restless patient. Padded bed rails or pillows along the edges are safer than your hands trying to hold them down.

Some patients have a calmer version of restlessness that looks like reaching, gesturing, or speaking to people not in the room. This rarely needs medication. Many families describe it as comforting once they've seen it a few times.

Other things you'll see

Eyes open and unfocused. Many patients in the last hours have eyes partially or fully open without recognition. Saline drops every hour or two keep the cornea from drying out.

Mouth open, jaw slack. The face takes on a relaxed appearance. Don't try to close the jaw with a chinstrap until after death; pressure during life is uncomfortable and doesn't hold anyway.

Cool skin, deep mottling. Purple-blue blotching on the knees, feet, lower legs, sometimes the arms. The pattern can spread up the body in the last hours.

Brief seizures or muscle jerks. Single twitches in an arm or leg are common myoclonus from metabolic changes. Full convulsive seizures are rare but happen, especially with brain tumours, uraemia, or hyponatraemia. Either way, the death seizures article covers what they look like and what medication is used.

A change in skin colour around the nose, mouth, and fingernails. Often a waxy pallor with a bluish tinge. This is cyanosis from dropping oxygen levels and is expected.

What the hospice nurse will do in the last hours

If your parent is at home with home hospice, the nurse may stay for the last stretch if the family asks and the timing works. More often the nurse visits every few hours and is available by phone in between. Most teams will not promise to be present at the moment of death. They will promise to come within an hour of being called afterwards to certify and arrange the next steps.

If your parent is in a Dover Park, Assisi, Bright Vision, or HCA inpatient bed, the nursing staff will look in every 30 to 60 minutes in the last hours and stay longer if you ask. Buzz them anytime. They are not annoyed by frequent calls in this phase.

If your parent is in a restructured hospital ward (NUH, SGH, TTSH, KTPH, NTFGH, CGH, SKH), the palliative team usually flags the bed to the nursing station so checks are more frequent. Ask the nurse for the palliative care liaison if you don't already know them.

What families can do

Sit close. Hold a hand. Tell them what you want them to know, including the things that feel too big to say. Bring the grandchildren in for short, quiet visits if you want them there. Play music your parent liked, low. Read aloud if reading is your thing. Pray if that's yours.

Don't fill the silence for the sake of it. Most patients in the last hours are not asking you to entertain them. Just being in the room is what they wanted. The Cantonese, Hokkien, Tamil, or Malay your parent grew up with often lands better than the English you'd use with a colleague. Use whatever feels right.

The breathing will get slower. The pauses will get longer. The body in front of you is letting go, and what you're doing by being there matters more than anything you say.

One pattern worth knowing: a lot of parents die in the minutes after the family steps out for a coffee or a toilet break, or in the small hours after everyone has gone to sleep on the wards next door. Hospice nurses see it constantly. Whether it's coincidence or the dying person quietly choosing the moment, no one is sure. What matters is that if you happen not to be in the room when it happens, you did not fail them. Many people seem to need that small bit of privacy to go.