This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Organic Mental Disorder, Subject name: Psychiatry
[{'content': 'Most important feature of delirium - \nSelect and explain. \nA. Impaired attention, B. Anxiety, C. Hyperactivity, D. Clouding of consciousness', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Clouding of consciousness o The most conspicuous feature is a clouding of consciousness which ranges from mild dulling to deep coma.Deliriumo Delirium is defined by the acute onset of fluctuating cognitive impairment and a disturbance of consciousness. It is also referred to as acute confusional state or acute organic brain syndrome Clinical features of delirium -1) Altered consciousness (clouding of consciousness to coma)2) Cognitive impairment Impaired attention, poor concentration, disorientation or confusion, altered sensorium, and memory disturbances (Impairment of immediate and recent memory).3. Perceptual anomalies Illusion, Hallucinations.4. Emotional disturbances fear & anxiety'.5. Language disturbances and psychomotor disturbances (hypoactivity or hyperactivity).6. Disturbance of sleep-wake cycle.7. Autonomic disturbances Tachycardia, sweating, tremors.8. Neurological disturbances Tremor, seizure, choreiform movements.", 'role': 'assistant'}]