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Infections doenot mean that your dad is in the late stages of the disease.
is dementia caused by problems in supply of blood to the brain, typically by a series of minor strokes. is thought to be an irreversible form of dementia, and its onset is caused by a number of small strokes or sometimes, one large stroke preceded or followed by other smaller strokes causing problems with attention, orientation and urinary incontinence
The recommended investigations for cognitive impairment
should be carried out, chest X-Ray, ECG, and some type of neuroimaging
, preferably a scan When available as a diagnostic tool, single photon emission computed tomography (SPECT) and positron emission tomography
(PET) neuroimaging may be used to confirm a diagnosis of vascular dementia in conjunction with evaluations involving mental status examination'
hope this helps!