The Final Signs of Kidney Failure

How do you know the end is near in kidney failure?

The end of kidney failure is usually marked by the body slowly filling with what the kidneys can no longer remove. Advanced organ failure tends to follow a fluctuating course — stretches of relative steadiness broken by sharper dips, especially around infections or fluid overload 1Ref 1Lunney JR, Lynn J, Foley DJ, Lipson S, Guralnik JM (2003).Patterns of Functional Decline at the End of Life.The framework of end-of-life functional trajectories by disease group, placing organ failure in a fluctuating decline pattern with periodic sharper dips.. But when dialysis is stopped or was never started, the decline often becomes steadier and clearer.

The changes that, together, tend to mark the last stretch:

• Deepening drowsiness. Sleep grows longer and the person becomes harder to wake.
• Confusion and reduced alertness, as waste products rise in the blood.
• Less and less urine, sometimes almost none.
• Swelling and breathlessness as fluid the kidneys cannot clear backs up into the legs and lungs.
• Nausea, loss of appetite, and a metallic taste, with itching of the skin.

These are the general signs of approaching death arriving in the particular sequence that kidney failure brings. No single one fixes a date; together, over days to weeks, they usually mean the final part of life.

Two paths: stopping dialysis, or never starting it

Many people reach the end of kidney failure through a decision, not a sudden collapse. Some stop dialysis when it has become more burden than benefit; others, often older and living with several serious conditions, choose never to begin it. This second path has a name — conservative kidney management — and it is a recognized, actively supportive way of caring for the body, not a decision to do nothing 2Ref 2Peer-reviewed review (see article) (2016).Conservative Care of the Patient with End-Stage Renal Disease.That conservative (non-dialysis) kidney management is a recognized palliative approach, that older multimorbid patients may have similar survival and symptom burden with or without dialysis, and the symptom burden of advanced kidney failure..

For older adults with several other illnesses, the evidence is more balanced than families often expect: survival and day-to-day symptom burden can be similar whether or not dialysis is used 2Ref 2Peer-reviewed review (see article) (2016).Conservative Care of the Patient with End-Stage Renal Disease.That conservative (non-dialysis) kidney management is a recognized palliative approach, that older multimorbid patients may have similar survival and symptom burden with or without dialysis, and the symptom burden of advanced kidney failure.. That does not make the choice easy, and it is deeply personal. But it means that choosing comfort over dialysis is a legitimate medical path, not a failure of care. A kidney or palliative team can walk a family through what each option would actually look like in the weeks ahead.

What uremia looks like as it builds

When the kidneys stop clearing waste, that waste accumulates in the blood, and the whole body feels it. Clinicians call the resulting cluster of symptoms uremia, and it carries a real symptom burden that comfort care is meant to ease 2Ref 2Peer-reviewed review (see article) (2016).Conservative Care of the Patient with End-Stage Renal Disease.That conservative (non-dialysis) kidney management is a recognized palliative approach, that older multimorbid patients may have similar survival and symptom burden with or without dialysis, and the symptom burden of advanced kidney failure.. Understanding uremia end of life helps families read what they are seeing instead of fearing it.

• The brain slows first. Drowsiness, trouble concentrating, and confusion come as toxins rise, and the person sleeps more.
• The stomach turns. Nausea, a metallic or foul taste, and loss of appetite are common.
• The skin itches, sometimes intensely, and can look pale or sallow.
• Fluid gathers. Ankles, legs, and eventually the lungs hold water the kidneys cannot release, making breathing feel heavy.

Each of these can be softened. Nausea, itching, and breathlessness all respond to comfort measures and medicines a hospice team prescribes and labels for that specific person.

The signs of the final days and hours

In the last days, the body withdraws in ways that look similar across many illnesses 3Ref 3Hospice Foundation of America (2023).When Death Is Near: Signs and Symptoms.The physical signs of the final days and hours: increased sleep and reduced responsiveness, decreased intake, changed and rattling breathing, and skin mottling and cooling.. Recognizing them can spare a family the panic of mistaking a natural death for an emergency.

• Deep sleep and unresponsiveness. The person cannot be woken but may still hear a familiar voice.
• Almost no food or drink, and little or no urine.
• Changed breathing — long pauses, then a run of faster breaths — sometimes with a rattling sound as air moves over saliva that can no longer be cleared.
• Cool, mottled skin on the hands, feet, and knees as circulation draws inward.

The rattling breath in particular distresses listeners far more than it distresses the person, who is usually deeply unconscious by then. A hospice nurse can suggest position changes and, if needed, medicines that quiet it.

Eating, drinking, and fluids near the end

As the end nears, appetite and thirst fall away, and pushing food or fluids rarely helps. Near the end of life, artificial nutrition and hydration generally do not prolong life or add comfort, and can add burden 4Ref 4Peer-reviewed article (see publication) (2006).Artificial Nutrition and Hydration at the End of Life: Ethics and Evidence.That artificial nutrition and hydration near the end of life generally does not prolong life or improve comfort and can add burden.. In failing kidneys this matters twice over: extra IV fluid the body cannot excrete tends to worsen swelling and breathlessness rather than relieve them.

What helps now is comfort, not volume. A moist mouth, balm on dry lips, a cool swab, or small sips if the person can still manage them do more for wellbeing than a bag of fluid. Families sometimes fear that stopping fluids means the person will feel thirsty or be starved. Good mouth care addresses the sensation of dryness, and the natural slowing of intake is part of the body's own shutting down. A hospice team can explain this shift, which is one of the hardest for families to accept.

Restlessness and confusion

Many people become restless or confused in the final days, a state clinicians call terminal delirium 5Ref 5Peer-reviewed review (see article) (2020).Improving the Management of Terminal Delirium at the End of Life.The clinical features of terminal delirium and restlessness near death — its high prevalence, that it is often not fully reversible, and that it can be eased with comfort-directed measures.. It can look like plucking at bedsheets, trying to get out of bed, moaning, or sudden confusion about where they are. In kidney failure, rising waste products in the blood can add to this, so the confusion may come earlier and more steadily than in some other illnesses.

Terminal restlessness is often not fully reversible, but it can almost always be eased. A hospice team looks first for treatable triggers — a full bladder, constipation, unspoken pain — and then uses comfort medicines, prescribed and labeled for that specific person, to settle the body. A quiet room, soft light, and a familiar voice help alongside the medicines.

Does stopping dialysis mean giving up?

This is the fear that sits under every conversation about ending dialysis, and it deserves a straight answer. Choosing comfort over dialysis is not the same as abandoning someone. Comfort-focused care affirms life, treats dying as a normal process, and intends neither to hasten nor to postpone death 6Ref 6World Health Organization (2020).Palliative care.That palliative care affirms life, regards dying as a normal process, and intends neither to hasten nor to postpone death.. Its whole purpose is to relieve suffering in the time that remains.

And for many older adults with several serious conditions, the trade is not the stark one it first appears: as noted above, survival and symptom burden can be comparable with or without dialysis, while comfort care spares the person the fatigue, restrictions, and repeated procedures that dialysis brings 2Ref 2Peer-reviewed review (see article) (2016).Conservative Care of the Patient with End-Stage Renal Disease.That conservative (non-dialysis) kidney management is a recognized palliative approach, that older multimorbid patients may have similar survival and symptom burden with or without dialysis, and the symptom burden of advanced kidney failure.. Treating breathlessness, nausea, and itching in the final weeks is not giving up. It is care shaped to where the person actually is.

Getting hospice support in time

Hospice is comfort-focused care for the final months of life, provided wherever the person lives — home, a nursing facility, an inpatient unit — with a nurse line answered around the clock. Because the end-stage renal disease trajectory can be steadier once dialysis stops, families sometimes have little warning, which makes it worth asking about hospice before the last week rather than during it.

It is always reasonable to ask the kidney doctor or primary physician whether hospice would help now, or to phone a hospice directly to request an eligibility visit. For families choosing among hospices, Medicare's Care Compare tool publishes quality measures that can be read side by side. Putting a person's wishes into portable medical orders that travel across settings helps ensure that, when breathing changes in the night, the plan already chosen is the plan that is followed.