There is a huge range of potential causes including head injury, interruption of blood circulation, impaired oxygenation or carbon dioxide toxicity (hypercapnia), CNS infections, drug intoxication or withdrawal, post-seizure state, hypothermia, and metabolic derangements such as hypoglycemia, hyponatremia, and hypercalcaemic crisis.
The root word, obtund, means "dulled or less sharp" cf. obtuse angle.
- Panayiotopoulos, C. P. (2010). A Clinical Guide to Epileptic Syndromes and their Treatment. Springer Science & Business Media. pp. 76–77. ISBN 9781846286445. Retrieved 7 March 2018.
- In Wells, B. G., In DiPiro, J. T., In Schwinghammer, T. L., & In DiPiro, C. V. (2017). Pharmacotherapy handbook.
- The dictionary definition of obtundation at Wiktionary