For patients, families and carers

Publishing October 2026

Delirium
(Acute Confusion)

A Family Guide to Sudden Changes in Thinking and Memory

Written by the clinician who developed the 4AT and a doctor with lived experience of severe ICU delirium.

A detailed, plain-English guide to what delirium is, why it happens, what care may involve and what families can do. Read it through, or keep it close for easy reference.

Includes advice for people living with dementia.

Cover of Delirium (Acute Confusion): A Family Guide

Clear explanations for what families see and what happens next

When a relative or friend becomes confused, behaves unusually or seems to be seeing things that are not there, families often receive a great deal of information in a short time. This guide explains delirium in a form that can be read at the bedside, at home or later during recovery.

It covers delirium in hospital, intensive care, care homes and at home. It also looks at hallucinations, false beliefs, medicines, safety, recovery and the difficult overlap between delirium and dementia.

More detail, in a form you can keep beside you

Delirium Support and this book share the same purpose: to help patients and families understand delirium and respond to it. The website provides free information when an answer is needed quickly. The book brings the subject together in greater depth, with a clear route from the first signs of delirium through care, recovery and life afterwards.

It is for people who want to read from beginning to end, or return to a particular question later. Kindle and print editions will offer a choice between a portable digital copy and a detailed physical book that can be kept nearby, marked and lent to someone else.

See what the guide will cover

A practical route through delirium

01

Understanding delirium

What delirium is, how common it is, what causes it and how doctors diagnose and treat it.

02

The experience

What delirium may feel like for the person, and what families often see and experience.

03

Care in hospital

What happens on the ward, medicines, raising concerns, persistent delirium and going home.

04

Different settings

Delirium at home, after surgery, in intensive care, in care homes and near the end of life.

05

Delirium and dementia

How they differ, how they interact and what delirium may mean for future memory problems.

06

What families can do

Plain actions, useful questions, sources of help, a glossary and a quick action guide.

Read Chapter 1 free

Chapter 1, Understanding delirium, explains what delirium is, how it differs from dementia and other conditions, what causes it and how families can help. The PDF includes the illustrations, the book cover and the contents list for the whole book.

Clinical knowledge and lived experience

Professor Alasdair MacLullich

Alasdair is a doctor and Professor of Geriatric Medicine at the University of Edinburgh. He has cared for people with delirium and their families for more than three decades and developed the widely used 4AT delirium assessment tool.

Dr Sharmella Summan

Sharmella is a doctor who has cared for people with delirium and experienced severe delirium herself while in intensive care. She brings clinical knowledge and personal experience to the guide.

The complete paperback cover spread, showing the back cover, spine and front cover of Delirium (Acute Confusion): A Family Guide

Choose the format that works for you

Kindle and print editions are planned for October 2026. The Kindle edition will keep the guide available on a phone, tablet or e-reader. The print edition will provide a detailed physical reference to keep at home, take to appointments and share with relatives.

Read Chapter 1 free

Published by Delirium Support Press.