Obtundation refers to less than full alertness (altered level of consciousness), typically as a result of a medical condition or trauma.[1]

SpecialtyEmergency medicine

It can appear in hypercalcaemic crisis.[2]

The root word, obtund, means "dulled or less sharp" cf. obtuse angle.

See also


  1. 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.
  2. 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
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