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[[Appendicitis]],  
[[Acute intermittent porphyria]],  
[[Bacterial meningitis]],  
[[Adrenal leukodystrophy]],  
[[Bartonella infections ]],  
[[Citrullinemia type 2]],  
[[Brain abscess]],  
[[Cope's syndrome ]],  
[[Brain infection]],  
[[Coproporphyria, hereditary]],  
[[Brill-Zinsser disease]],  
[[Folate deficiency]],  
[[Cat scratch disease ]],  
[[Hyperammonemia ]],  
[[Cerebral abscess]],  
[[Hypercalcaemia]],  
[[Cerebral malaria]],
[[Hyperglycemia]],  
[[Lower respiratory tract infection classification|Chest infection]],  
[[Hypermagnesemia]],  
[[Creutzfeldt-Jakob disease]],  
[[Hypernatremia]],  
[[Disseminated intravascular coagulation]],  
[[Hypocalcaemia]],  
[[Epidemic typhus ]],  
[[Hypoglycaemia]],  
[[Gangrene ]],  
[[Hypokalaemia]],  
[[Human immunodeficiency virus (HIV)]],  
[[Hypomagnesemia]],  
[[Infections]],  
[[Hyponatraemia]],  
[[Infectious mononucleosis]] 
[[Korsakoff syndrome]],  
[[Intracranial abscess ]],  
[[Lipid storage diseases]],  
[[Intracranial granuloma]],  
[[Niacin deficiency]],  
[[Central nervous system infection|Intraspinal abscess / granuloma, Intracranial abscess / granuloma]],  
[[Pellagra]],  
[[Legionella infection ]],  
[[Porphobilinogen synthase deficiency]],  
[[Listeria]],
[[Starvation]],
[[Lyme disease]] 
 
[[Lyme disease]],  
[[Wilson's disease]]
[[Malaria]]
[[Wernicke's encephalopathy]]
[[Mucormycosis]],  
[[Vitamin B12 deficiency]]
[[Neurocysticercosis]]
[[Thiamine (Vitamin B1) deficiency]
[[Neurosyphilis]],  
[[Niacin|Niacin deficiencies]],  
[[Plague ]],
[[Folate deficiency]],  
[[Postoperative septicemia  ]],
[[Acute intermittent porphyria]]
[[Pyelonephritis, acute]]
[[Starvation]]   
[[Rabies ]],
[[Recrudescent typhus  ]],
[[Rhinocerebral mucormycosis ]],  
[[Rhinocerebral zygomycosis ]],  
[[Rickettsiae]]
[[Sepsis]]
[[Septic shock]],
[[Sleeping sickness (East African)]]
[[Sleeping sickness (West African)]]
[[Streptococcal infections ]],
[[Subacute bacterial endocarditis]],
[[Subdural empyema]]
[[Surgical wound infection]],
[[Syphilis]],
[[Systemic infection]],
[[systemic inflammatory response syndrome]]
[[Typhoid fever]]
[[Urinary tract infection]],
[[Vancomycin resistant enterococcal bacteremia]],
[[Viral hemorrhagic fever]],




[[Advanced sleep phase syndrome|Advanced sleep phase disorder]],
[[Anxiety|Anxiety state]],
[[Bipolar disorder]],
[[Brief psychotic disorder]],
[[Catatonia]],
[[Chronic fatigue syndrome]],
[[Delayed sleep phase syndrome]],
[[Dementia]],
[[Depression]],
[[Drug abuse]],
[[Hysteria]],
[[Korsakoff's Syndrome]],
[[Lewy body dementia]],
[[Mental health]],
[[Narcolepsy]],
[[Neuroleptic malignant syndrome]],
[[stress|Postoperative stress]],
[[Psychiatric disorders]],
[[Schizoaffective disorder]],
[[Schizophrenia]],
[[Suicide]],


, [[Delayed sleep phase syndrome]]





Revision as of 13:30, 23 November 2015

Altered mental status




Acute intermittent porphyria, Adrenal leukodystrophy, Citrullinemia type 2, Cope's syndrome , Coproporphyria, hereditary, Folate deficiency, Hyperammonemia , Hypercalcaemia, Hyperglycemia, Hypermagnesemia, Hypernatremia, Hypocalcaemia, Hypoglycaemia, Hypokalaemia, Hypomagnesemia, Hyponatraemia, Korsakoff syndrome, Lipid storage diseases, Niacin deficiency, Pellagra, Porphobilinogen synthase deficiency, Starvation,

Wilson's disease Wernicke's encephalopathy Vitamin B12 deficiency [[Thiamine (Vitamin B1) deficiency] Niacin deficiencies, Folate deficiency, Acute intermittent porphyria Starvation





Altered mental status has varying time courses and degrees of severity. Acute changes in mental status are usually secondary to delirium, stupor, and coma, which are forms of acute brain dysfunction. These changes occur over a period of hours or days and are usually precipitated by an underlying medical illness that is potentially life threatening. Chronic alterations in mental status (e.g. dementia) occur over a period of months and years and are less likely to be precipitated by a life-threatening illness. For these reasons, acute changes in mental status will be the focus of this review. Altered mental status is rarely caused by psychiatric illnesses such as depression or schizophrenia, and in elder patients, these should be diagnoses of exclusion. Acute brain dysfunction (delirium, stupor, and coma) and their underlying etiology should be ruled out prior to considering any psychiatric diagnoses, especially in patients without a previous history of psychiatric illness.