What are the clinical features of severe form of dementia

Following are the features of MODERATE DEMENTIA

1. In moderate dementia Speech difficulties become obevious due to an inability to recall vocabulary.
2. Progressive impairment of reading and writing skills are seen.
3. Memory problems worsen in  moderate dementia.
4. Behavioural and neuropsychiatric changes become more evident. 
5. Common manifestations seen are are wandering, irritability and labile affect, unpredictable aggression, or resistance to care giving.
6. Urinary incontinence becomes a problem.

Features of ADVANCED

1. In advanced dementia the patient is completely dependent upon his or hers caregivers.
2. There is complete loss of speech.
3. Patients show extreme apathy and exhaustion. 
4. The cause of death in AD is usually an external factor such as infection of pressure ulcers or pneumonia, not due to the disease itself.

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