Obtundation

ICD-9	780.09

Obtundation refers to less than full mental capacity in a medical patient, typically as a result of a medical condition or trauma. The root word, obtund, means "dulled or less sharp".

When a patient is first assessed, the medic, nurse or physician is checking to see if the person is "A&O times 4", which means alert and oriented with respect to identity, current location, current time and date, and what event led to the necessity for medical treatment.^[1] If the patient has any difficulty answering questions about these matter, the practitioner may say the patient is obtunded or "A&O times 2" and so on.

[edit] References

v • d • e Symptoms and signs: cognition, perception, emotional state and behaviour (R40-R46, 780.0-780.5,781.1) Cognition Alteration of consciousness Confusion (Delirium) · Somnolence · Obtundation · Stupor · Unconsciousness (Syncope, Coma, Persistent vegetative state) Fainting/Syncope Carotid sinus syncope • Heat syncope • Vasovagal episode Other Amnesia (Anterograde amnesia, Retrograde amnesia) · Dizziness (Vertigo, Presyncope/Lightheadedness, Disequilibrium) · Convulsion Emotional state Anxiety · Irritability · Hostility · Suicidal ideation Behavior Verbosity Perception/ sensation disorder Olfaction : Anosmia · Hyposmia · Dysosmia · Parosmia · Hyperosmia Taste: Ageusia · Hypogeusia · Dysgeusia  · Parageusia · Hypergeusia Hallucination: Auditory hallucination psychology navs: mental processes, disorders, symptoms/signs, speech/voice, psychotherapy olfaction navs: anatomy, symptoms/signs taste navs: anatomy, symptoms/signs

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