Delirium: guidance for relatives
This page explains what delirium is, and how you can support your relative experiencing delirium. We hope it answers your questions and helps with your relative’s recovery.
There is further information and resources at the end of the page.
What is delirium?
Delirium is a state of confusion that can happen when someone is medically unwell. It affects about 2 in 10 hospital patients but is more common in older people whose thinking skills might not be as strong as before. It can be frightening for the person who is unwell and for those around them.
Delirium can look very different for different people. Your relative may be very agitated and upset and may try to get out of bed or remove medical tubes like cannulas. This is hyperactive delirium. Or they may not talk, stay very still, or seem very depressed. This is hypoactive delirium, and it can be harder to spot as the person will not be able to say what is wrong.
What is it like to have delirium?
Your relative may:
- Be less aware of what is going on around them.
- Be unsure of where they are or what they are doing there.
- Have vivid, frightening dreams, which may continue when they wake up.
- Hear noises or voices when there is nothing or no one there to cause them.
- See people or things which are not there.
- Worry that other people are trying to harm them.
- Be acutely confused and agitated, struggle to think clearly or be sleepy/drowsy. Some people may fluctuate in symptoms.
- Sleep during the day but be more awake at night.
Who is at risk of developing delirium?
- Older people.
- People with memory problems/dementia.
- People who have poor hearing or eyesight.
- Severely ill people.
- People who have had surgery.
- People with an infection.
- People who are dehydrated.
- People who are terminally ill.
- People who have suddenly stopped drugs or alcohol.
- People who take certain medication such as painkillers and steroids.
- People who have constipation.
How is delirium treated?
To treat delirium, we need to find and treat the cause - which can be different for each person. Common causes include infection, dehydration, constipation, and pain. Your relative may have more than one cause, for example a urinary infection, constipation, and dehydration.
Treatment will depend on the causse and may include antibiotics, fluids through a drip, help to eat and drink, and medicines to reduce agitation if needed.
A personalised care plan will be written with you. It will be reviewed and monitored by the Occupational Therapist.
How long does it take to get better?
After treatment, delirium can take days or weeks to fully go away. For some people, it can have lasting effects. It is important to see whether your relative recovers more quickly at home before making important decisions about future care.
Medical staff will let their GP know that they have had delirium in their hospital discharge letter. The GP can assess this after discharge and refer on to other services if further support is needed. It is important that you know what information has been shared so you can ask for a review appointment with the GP.
What can you do to help?
You know your relative best. If you notice they are acting very differently to normal, or appear very upset, please let the staff know.
Tips:
Help to orient them to time – talk about the day, date, and the weather.
- Help to orient them to place – remind them they are in hospital and that they are safe.
- Delirium can disrupt a person’s sleep-wake cycle. As much as possible, help them keep to their usual sleep-wake cycle so that they spend more time awake during daylight hours. This may include waking them when they doze during the day. Even though this can seem unkind, it will maximise their sleep during the night.
- Try to help them access as much light as possible during the daytime – if possible, help them access the Costa garden or ask staff for help with this.
- Try not to argue, dismiss, or encourage any delusions/hallucinations the person experiences. You can tell them you understand how scary and stressfulthings must feel for them – talk to them as a rationalperson having a strange experience.
- If your relative directly asks you about whether you agree with a delusion/hallucination, you can say it seems unlikely to you but you’re open to learning otherwise.
Checklist
- If your relative uses hearing aids or glasses, make sure they have these on the ward and wear them. You can ask staff for help with this.
- Think of activities that may be able to keep them alert and focused where possible.
- Bringing in familiar items may help reassure your relative and focus on the here and now. Some examples could be:
- Own day clothes – not just nighties/pyjamas.
- Looking at pictures of loved ones.
- Pictures of previous holidays.
- Listening to calming music.
- Listening to familiar audiobooks.
- Smell of a familiar perfume.
Useful contacts
Ward staff should always be the first people you ask for more information.
- Carers Support
CarersLine: 0117 965 2200
Carers Support Bristol and South Gloucestershire - Alzheimer’s Society
National Helpline: 0300 222 1122
Alzheimer's Society - Royal College of Psychiatrists~
Web based information on delirium.
Delirium - Delirium prevention, diagnosis, and management
National Institute for Health and Care Excellence
Delirium: prevention, diagnosis and management in hospital and long-term care | NICE
© North Bristol NHS Trust. This edition published October 2025. Review due October 2028. NBT003816.
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