Sandbox kiran3
Altered mental status
- Acute diverticulitis
- Acute intermittent porphyria
- Advanced sleep phase disorder
- Analgesics: mostly prescribed or illicit opiates such as oxycontin
- Antiepileptics such as phenytoin, carbamazepine, gabapentin
- Antidepressants: for instance sedating tricyclic antidepressants
- Antihistamines: diphenhydramine and doxylamine
- Antihypertensive medications like amlodipine
- Antipsychotics: thioridazine, quetiapine, olanzapine, risperidone, and ziprasidone but not haloperidol
- Appendicitis
- Acute Liver failure
- Acute Renal failure
- Adrenal cortex insufficiency
- Alcohol withdrawal
- Acute altitude sickness
- Antihistamines
- Antipsychotics
- Benzodiazepine receptor agonists: Eszopiclone, Zolpidem, Zaleplon
- Brain abscess
- Brain edema
- Brain infection
- Brain or epidural abscess
- Cerebral hypoxia
- Chronic fatigue syndrome
- Dopamine agonists used in the treatment of parkinson's disease e.g. pergolide, ropinirole and pramipexole.
- Brain tumor
- Burns
- Cabergoline
- Carbon monoxide toxicity
- Carbon tetrachloride
- Cardiac failure
- Cerebral infarction
- Cerebral malaria
- Cerebral oedema
- Cerebrovascular accident
- Congestive heart failure
- Constipation
- Dehydration
- Delayed sleep phase syndrome
- Depression
- Dopamine agonists used in the treatment of parkinson's disease e.g. pergolide, ropinirole and pramipexole.
- Chest infection
- Chronic Liver failure
- Chronic Renal failure
- Coproporphyria, hereditary
- Cushing syndrome
- Cyanide
- Daphne poisoning
- Decompression sickness
- Diabetic hypoglycemia
- Diabetic ketoacidosis
- Drug overdose
- Drug withdrawal
- Electric shock
- Elevated or depressed adrenal function
- Elevated or depressed pancreas function
- Elevated or depressed pituitary function
- Encephalitis
- Encephalitis
- Epidural hematoma
- Epidural haemorrhage
- Epileptic seizures
- Ethanol
- Ethylene glycol
- Fat embolism
- Folate deficiency
- Gangrene
- Hallucinogens
- Head injury
- Heart failure
- Heat stroke
- Heroin
- HIV medications for example, efavirenz
- Hypnotics like zopiclone, or the benzodiazepine such as diazepam or nitrazepam and the barbiturate, such as amobarbital or secobarbital
- Hperthyroidism
- Hpherphosphatemia
- Hydrogen sulfide
- Hyomagnesemia
- Fibromyalgia
- Hydrocephalus
- Hyperbaric sickness
- Hypercalcemia
- Hypercarbia
- Hypereosinophilia
- Hyperglycemia
- Hypermagnesia
- Hypernatremia
- Hyperosmolar non-ketotic diabetic coma
- Hyperosmolar states
- Hypertensive encephalopathy
- Hyperthermia
- Hyperthyroid
- Hypocalcemia
- Hypoglycemia
- Hyponatremia
- hypoosmolar states
- Hypophosphatemia
- Hypopituitarism
- Hypothermia
- Hypothyroidism
- Hypoxemia
- Hypoxia
- Infections
- Infectious mononucleosis (glandular fever)
- Intracranial abscess / granuloma
- Intracranial bleeding
- Intraspinal abscess / granuloma
- Jimson weed
- Lead
- Leukemic blast cell crisis
- Lithium
- Liver failure
- Lyme disease
- Malaria
- Malignant hypertension
- Marijuana
- Melatonin receptor agonists: Ramelteon
- Meningitis
- Meningoencephalitis
- Mesenteric ischemia
- Methanol
- Muscle relaxant
- Myocardial infarction
- Myxedema coma
- Neurocysticercosis
- Neurosyphilis
- Niacin deficiencies
- Nickel poisoning
- Nonconvulsive status epilepticus
- Organic solvent
- Pituitary apoplexy
- Phaeochromocytoma
- Phencyclidine
- Pituitary apoplexy
- Plague
- Poison hemlock
- Polycythemia
- Porphyria
- Postictal state
- Postoperative stress
- Pyelonephritis, acute
- Quinolones
- Rabies
- Raised intracranial pressure
- Renal failure, acute
- Renal failure, chronic
- Respiratory failure
- Rickettsiae
- Schizoaffective disorder
- Sepsis
- Serotonin syndrome
- Skull fracture
- Sleep apnea
- Sleeping sickness (East African)
- Sleeping sickness (West African)
- Starvation
- Subdural empyema
- Subdural hematoma
- Subarachnoid hemorrhage
- Wound#infectionSurgical wound infection
- Systemic infection
- systemic inflammatory response syndrome
- Systemic organ failure
- Texas Mescalbean poisoning
- Thiamine (Vitamin B1) deficiency
- Thallium Sulfate poisoning
- Thrombocytosis
- Thyrotoxicosis
- Toluene
- Toxic mushrooms -- Monomethylhydrazine
- Trauma
- Typhoid fever
- Uremia
- Urinary tract infection
- Valproic acid
- Vancomycin resistant enterococcal bacteremia
- Vasculitis
- Venous sinus thrombosis
- Ventricular arrhythmia
- Viral hemorrhagic fever
- Vitamin B12 deficiency
- Water hemlock poisoning
- Wernicke's encephalopathy
- Wilson's disease
- Withdrawal states e.g. ethanol, benzodiazepines
Appendicitis,
Bacterial meningitis,
Bartonella infections ,
Brain abscess,
Brain infection,
Brill-Zinsser disease,
Cat scratch disease ,
Cerebral abscess,
Cerebral malaria,
Chest infection,
Creutzfeldt-Jakob disease,
Disseminated intravascular coagulation,
Epidemic typhus ,
Gangrene ,
Human immunodeficiency virus (HIV),
Infections,
Infectious mononucleosis
Intracranial abscess ,
Intracranial granuloma,
Intraspinal abscess / granuloma, Intracranial abscess / granuloma,
Legionella infection ,
Listeria,
Lyme disease
Lyme disease,
Malaria
Mucormycosis,
Neurocysticercosis
Neurosyphilis,
Plague ,
Postoperative septicemia ,
Pyelonephritis, acute
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,
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.