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confusion
A mental state in which reactions of a person or patient to environment is inappropriate due to bewilderment or inability to orient.
Etiology:
1) delirium
2) dementia
3) psychosis
4) pharmaceutical agents
Differential diagnosis:
-> confusion & restlessness are often manifestations of agitation in the elderly
Related
confusion assessment method (CAM)
pharmaceutical agents associated with confusion
General
thought disorder
References
Stedman's Medical Dictionary 27th ed, Williams &
Wilkins, Baltimore, 1999