Sudden confusion in an older person: what it means

1. 1

   Ring 999 or go to A&E on any of these signs

   Now

   The NHS lists sudden confusion on its own as a reason to go to A&E or call 999. Ring without waiting if they are also breathing very fast, have blue, pale or blotchy skin, a very high or very low temperature, a rash that does not fade when you press it, or if you cannot rouse them properly. Those are the NHS signs of sepsis in an adult.
2. 2

   Otherwise ring 111 or the surgery, today rather than tomorrow

   Same day

   Where the change has come on over a day or two and they are otherwise stable, ring the GP surgery and ask for a same-day call, or use NHS 111 if the surgery is closed. Say that the confusion is new and give the day it started, because that tells the person on the phone this is a change rather than how your relative is.
3. 3

   While you wait, keep it calm and keep them safe

   Tonight

   The NHS advice is to stay with them, reassure them and use short, simple sentences. Do not fire questions at them, and do not stop them moving about unless they are in danger. Put the light on, and put their glasses back on and their hearing aids in.
4. 4

   Have the answers ready before anyone rings back

   Five minutes

   The day you first noticed the change. Every medicine they take, including anything started, stopped or changed in the last fortnight. When they last opened their bowels, how much they have drunk, whether they have passed urine today, and whether they have had a fall. A clinician will ask all of it.

Delirium is common in hospital, where NICE puts the prevalence on medical wards at about 20% to 30% and says that 10% to 50% of people having surgery develop it. It is talked about less when it happens at home, where a family is the only person watching. The other guides in health conditions at home cover the illnesses that make an episode more likely, among them care at home during cancer treatment, where a temperature or feeling unwell is treated as an emergency.

NICE puts it plainly for clinicians: where there is difficulty distinguishing between delirium, dementia and delirium on top of dementia, manage the delirium first. The reverse mistake costs time, because a treatable cause goes untreated while everyone assumes the dementia has moved on a stage. Signs that dementia is getting worse describes what a real progression looks like, which is slow rather than overnight, and what is sundowning covers the late-afternoon restlessness that people with dementia can have without anything new being wrong. Where the diagnosis is Lewy body dementia, swings between alertness and confusion within a single day are part of the condition, and what makes Lewy body dementia different describes that pattern.

A first episode of delirium in somebody with no dementia diagnosis does not mean they have dementia. It does need following up, because NICE records a higher incidence of dementia afterwards. If a diagnosis is already in place, dementia care at home covers the wider picture, and where that diagnosis is vascular dementia, a drop that arrives as a step after further damage to the blood supply is worth reporting rather than absorbing.

UKHSA publishes the quick reference tool that GP surgeries in England use to diagnose urinary tract infections, endorsed by NICE and last updated in July 2025. For adults over 65 it says: do not perform urine dipsticks. Dipsticks become less reliable with age, because bacteria in the urine without an infection get more common, and by 80 years about half of older adults living in care homes can have bacteria present in the urine without an infection. The guidance adds that this is not harmful, and that although it can cause a positive dipstick, treating it with antibiotics is not beneficial and may cause harm.

The tool is specific about confusion. Where fever and delirium or a loss of function are the only findings, it tells clinicians to exclude other infections before treating for a urine infection, and where the symptoms do not point to the urine, it sends them to the PINCH ME list instead.

Doing all five for somebody who is weak, frightened and awake at odd hours is more than most families can manage alongside their own work. A carer coming in morning and evening covers the drinks, the meals, the tablets and the getting up, and notices on Tuesday that Monday was better. If that is what you need while your relative recovers, search for carers near you and compare their rates and the hours they can cover. Carers on PrimeCarers charge £18 to £25 an hour with our fee included, against £28 to £35 for the same visit through an agency.

Nights are often the hard part, because sleep is broken and the walk to the bathroom is unsteady. An overnight carer starts at about £130 a night, and overnight care so the family carer can sleep explains sleeping and waking nights. If the confusion followed a hospital stay, hourly care after a hospital stay covers the first fortnight, emergency care is the route when cover is needed within a day or two, and our pricing sets out each figure.

PrimeCarers is an introductory service rather than an agency, so you choose the carer and agree the hours with them directly. Before a profile appears, every carer has an identity check, a right to work check, an enhanced DBS on the Update Service and an online interview, and carers hold insurance that covers them while they work. Experience of delirium or dementia is the carer's own account, so ask about it yourself.