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Delirium 

Delirium
Chapter:
Delirium
Source:
Dementia Care: A Practical Manual
Author(s):

Jonathan Waite

, Rowan H. Harwood

, Ian R. Morton

, and David J. Connelly

DOI:
10.1093/med/9780199228829.003.0003

What is delirium? 50

Prevalence 51

Diagnosis 52

Features 54

Causes 56

Delirium mimics: differential diagnosis 58

Management 60

When should you seek psychiatric assistance? 63

Investigations 64

Special situations 66

Prevention 70

Course and prognosis 72

Summary 74

Delirium is an organic psychiatric syndrome—a psychological or mental response to a ‘physical’ cause. It comprises a transient, usually reversible state, with variable, fluctuating and wide-ranging abnormalities in attention, alertness, cognition, perception, sleep-wake cycle, agitation or psychomotor retardation....

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