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Delirium prevention and management

Key points

  • Delirium is a sudden, serious change in mental state that is a medical emergency—not just 'dementia getting worse.'
  • The most important thing you can do is recognize the sudden change and call for help immediately.
  • Delirium is often preventable with good hydration, nutrition, pain management, mobility, and a familiar environment.
  • Never assume sudden confusion is dementia; always suspect delirium first and push for a medical evaluation.
  • Non-drug approaches (calm environment, reorientation, familiar objects) should be tried first for agitation, but medication may be needed in severe cases under doctor supervision.
  • You are the expert on your loved one's baseline. Trust your instincts and speak up if something seems wrong.

General caregiving information, not medical advice. Check medications and major care changes with your clinician.

Step-by-step

  1. Know the signs of delirium: sudden confusion, agitation, drowsiness, seeing things that aren't there, or being unusually withdrawn. Use the word 'sudden' when describing changes to a doctor. If symptoms appear over hours or days, it's likely delirium, not dementia progression.

  2. If you suspect delirium, call the doctor or 911 immediately. Say: 'My loved one with dementia has suddenly become much more confused and is acting differently. I suspect delirium, which I understand is a medical emergency.' Do not wait to see if it passes.

  3. In the hospital or at home, keep a 24-hour clock and a large-print calendar in the room. Point to them regularly and say: 'It is Tuesday morning, October 10th. You are in the hospital because of your hip surgery. I am here with you.' This helps reorient the person and reduce confusion.

  4. Ensure the person stays hydrated and eats regularly. Offer small, frequent meals and fluids like water, juice, or soup. Dehydration and poor nutrition are common triggers for delirium. If they refuse, try a favorite drink or a smoothie.

  5. Encourage mobility as much as safely possible. If they are in bed, help them sit up, dangle their legs, or take a short walk with assistance. Immobility can worsen delirium. Even standing for a minute helps.

  6. Manage pain proactively. Untreated pain is a major cause of delirium. Ask the healthcare team: 'Is my loved one in pain? Can we try a non-drug approach like a warm blanket or repositioning, or a low-dose pain reliever?' Avoid over-sedation with strong painkillers unless necessary.

  7. Reduce sensory problems. Make sure they have their glasses on and hearing aids in (with working batteries). Poor vision or hearing can make confusion worse. Speak clearly and face them when talking.

  8. Bring familiar objects from home: a photo, a favorite blanket, a familiar pillow, or a small plant. These provide comfort and a sense of safety in an unfamiliar environment.

  9. Limit visitors to one or two calm, familiar people at a time. Too many people can overstimulate and worsen agitation. Ask the nursing staff to cluster care tasks so the person gets longer periods of rest.

  10. If agitation occurs, try non-drug approaches first: speak in a calm, low voice; offer a warm drink; play soft music they like; or gently guide them to a quiet area. Avoid physical restraint or arguing. If the person is a danger to themselves or others, call for help immediately.

What not to do

  • Do not assume that sudden confusion is just 'the dementia getting worse.' This is the most common and dangerous mistake. Delirium is a medical emergency that requires immediate investigation. Instead, say: 'This is new and sudden. Please check for infection, medication side effects, or other medical causes.'

  • Do not try to reason with or argue with a person in delirium. Their brain is not processing information normally. Arguing will only increase their agitation. Instead, use validation: 'I can see you are scared. I am here to help you. Let's sit down together.'

  • Do not use physical restraints or sedatives as a first response. Restraints can worsen agitation and increase fall risk. Sedatives like benzodiazepines or antipsychotics should only be used as a last resort and under close medical supervision, as they can make delirium worse. Always try calming words, a quiet environment, and familiar routines first.

  • Do not ignore the person's pain or discomfort. A person in pain may become agitated or withdrawn. Ask them directly (if they can communicate) or look for nonverbal signs like grimacing, moaning, or guarding a body part. Treat pain promptly with the doctor's guidance.

  • Do not let the person become dehydrated or constipated. Both are common triggers for delirium. Offer fluids frequently and monitor bowel movements. If they haven't had a bowel movement in three days, tell the doctor.

Practical tools

  • The 'Sudden Change' Script for Calling the Doctor

    When you call the doctor or 911, say exactly this: 'My loved one has dementia, but this is different. They have suddenly become much more confused over the past [hours/days]. They are [agitated/withdrawn/seeing things]. I am worried about delirium. Can you please evaluate them for a medical cause like infection or medication side effects?' This script helps the healthcare team take it seriously.

  • The Hospital Delirium Prevention Kit

    Pack a small bag before any hospital stay: a large-print clock and calendar, a familiar photo or small blanket, their glasses and hearing aids with extra batteries, a list of their usual medications (including over-the-counter), and a notepad to write down questions for the medical team. Also bring a favorite drink or snack to encourage hydration.

  • The 'Get Up and Go' Reminder

    Set a timer on your phone to remind you to help the person get out of bed or a chair every two hours during the day. Even standing for 30 seconds or walking to the bathroom helps prevent the immobility that can trigger delirium. If they are in bed, help them sit up and dangle their legs over the side.

  • The 'Pain Check' Checklist

    Use this quick checklist to assess pain in a person who cannot communicate: Are they grimacing? Moaning? Guarding a body part? Restless? Withdrawn? If yes to any, assume pain is present. Ask the doctor for a pain assessment and a safe pain management plan. Non-drug options include a warm compress, repositioning, or a gentle massage.

  • The 'Reorientation' Phrase Bank

    Use these phrases calmly and repeatedly: 'It is [time of day] on [day of week], [date]. You are at [place]. I am [your name], your [relationship]. You are safe. I am here with you.' Avoid saying 'You are confused' or 'Remember, I told you this.' Just state facts gently.

  • The 'Quiet Room' Setup

    If the person is agitated, create a calm environment: dim the lights, close the curtains, reduce noise (turn off the TV), and speak in a low, slow voice. Play soft, familiar music (like their favorite old songs). Sit at eye level and offer a hand to hold. This can often calm agitation without medication.

Discuss with your clinician

Ask the doctor: 'What is the safest way to manage pain in my loved one with dementia to prevent delirium? Are there non-opioid options?'

Ask the pharmacist: 'Please review all medications, including over-the-counter and supplements, for any that could cause delirium, especially anticholinergics or sedatives.'

If the person has Lewy body dementia, ask the neurologist: 'What is the safest medication to use if delirium causes severe agitation? Are there any medications I must avoid?'

Ask the hospitalist or geriatrician: 'Does this hospital have a delirium prevention protocol? Can we implement it for my loved one?'

If the person is in long-term care, ask the medical director: 'What is the facility's policy for detecting and managing delirium? How will you communicate changes to me?'

Ask the doctor: 'If my loved one develops delirium, what tests will you do to find the cause? How quickly can we expect results?'

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