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Adapted from Caplan GA et al. Delirium. In: Stern TA, ed. Massachusetts General Hospital comprehensive Clinical Psychiatry. 1st ed. Philadelphia, PA: Mosby/Elsevier; 2008.73
| Wernicke’s disease or ethanol withdrawal |
| Hypoxia or hypercarbia |
| Hypoglycemia |
| Hypertensive encephalopathy |
| Hyperthermia or hypothermia |
| Intracerebral hemorrhage |
| Meningitis/encephalitis |
| Poisoning (whether exogenous or iatrogenic) |
| Status epilepticus |
