Which of the following can cause delirium ?

Ans. is `d' i.e., All of the above Impoant causes of delirium 1. Trauma : - Head injury, subdural hematoma 2.Infection : - Septicemia, pneumonia, endocarditis. 3.Metabolic : - Hypoxia, hypercapnia, uremia, CHF, Hepatic failure, porphyria, metabolic acidosis or alkalosis, water & electrolyte imbalance. 4. Endocrine : - Hypo- or hyperpituitarism, Hypo- or Hypehyroidism, Hypo- or hyperparathyroidism, hypo- or hyperadrenalism. 5.Drug intoxication : - Alcohol, barbiturates, TCA, anticholinergics, anticonvulsants. 6.Drug withdrawal : - Alcohol (delirium tremens), sedatives, hypnotics. 7 .Nutritional deficiency : - Vitamin (Thiamine, pyridoxine, Niacin, B12, Folic acid), Protein. 8.0ther : - Post-operative, seizures, sleep deprivation