Mental or Behavioral Dysfunction
delirium
de·lir·i·um [ dih-leer-ee-uhm ]
Subclass of:
Neurocognitive Disorders;
Confusion
Etymology:
Latin delirare = to be crazy (from de = away from + lira = furrow)
As in, go off the track.
As in, go off the track.
Definitions related to delirium:
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A disorder characterized by CONFUSION; inattentiveness; disorientation; ILLUSIONS; HALLUCINATIONS; agitation; and in some instances autonomic nervous system overactivity. It may result from toxic/metabolic conditions or structural brain lesions. (From Adams et al., Principles of Neurology, 6th ed, pp411-2)NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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A mental state in which a person is confused, disoriented, and not able to think or remember clearly. The person may also be agitated and have hallucinations, and extreme excitement.NCI Dictionary of Cancer TermsU.S. National Cancer Institute, 2021
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A mental state, characterized by fluctuations in orientation, concentration and ability to think clearly.NICHD Pediatric TerminologyU.S. National Cancer Institute, 2021
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A state of sudden and severe confusion.Human Phenotype Ontology (HPO)The Human Phenotype Ontology Project, 2021
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A usually reversible condition characterized by the acute and sudden development of confusion, illusions, movement changes, inattentiveness, agitation, and hallucinations. Causes include drug abuse, poisoning, infectious processes, and fluid and electrolyte imbalance.NCI ThesaurusU.S. National Cancer Institute, 2021
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Acute reversible mental disorder characterized by confusion and some impairment of consciousness; generally associated with emotional lability, hallucinations or illusions and inappropriate, impulsive, irrational or violent behavior.Sadock's Comprehensive Glossary of Psychiatry and PsychologyBJ Sadock Titles Press, 2012
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Disorder characterized by confusion, inattentiveness, disorientation, illusions, hallucinations, agitation and in some instances autonomic nervous system overactivity; may result from toxic or metabolic conditions or structural brain lesions; condition may also be acute and reversible.CRISP ThesaurusNational Institutes of Health, 2006
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Sudden, severe confusion that occurs because of a mental or physical illness.Harvard Dictionary of Health TermsHarvard Medical Publishing, 2011
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Delirium is a mental state in which you are confused, disoriented, and not able to think or remember clearly. It usually starts suddenly. It is often temporary and treatable. There are three types of delirium: Hypoactive, where you are not active and seem sleepy, tired, or depressed; Hyperactive, where you are restless or agitated; Mixed, where you change back and forth between being hypoactive and hyperactive. There are many different problems that can cause delirium. Some of the more common causes include Alcohol or drugs, either from intoxication or withdrawal. This includes a serious type of alcohol withdrawal syndrome called delirium tremens. It usually happens to people who stop drinking after years of alcohol abuse.; Dehydration and electrolyte imbalances; Dementia; Hospitalization, especially in intensive care; Infections, such as urinary tract infections, pneumonia, and the flu; Medicines.MedlinePlusU.S. National Library of Medicine, 2021
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A disorder characterized by the acute and sudden development of confusion, illusions, movement changes, inattentiveness, agitation, and hallucinations. Usually, it is a reversible condition.Common Terminology Criteria for Adverse EventsU.S. National Institutes of Health, 2021
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Delirium is an acute, transient, usually reversible, fluctuating disturbance in attention, cognition, and consciousness level. Causes include almost any disorder or drug. Diagnosis is clinical, with laboratory and usually imaging tests to identify the cause. Treatment is correction of the cause and supportive measures.Merck & Co., Inc., 2020
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Delirium is defined as a transient, usually reversible, cause of cerebral dysfunction and manifests clinically with a wide range of neuropsychiatric abnormalities. It can occur at any age, but it occurs more commonly in patients who are elderly and have compromised mental status.WebMD, 2019
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Delirium is a serious disturbance in mental abilities that results in confused thinking and reduced awareness of the environment. The start of delirium is usually rapid - within hours or a few days.Mayo Foundation for Medical Education and Research
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Delirium, a mental disturbance marked by disorientation and confused thinking in which the patient incorrectly comprehends his surroundings. The delirious person is drowsy, restless, and fearful of imaginary disasters. He may suffer from hallucinations, seeing terrifying imaginary animals or...Encyclopedia Britannica, Inc., 2020
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