Suggest Treatment For Dizziness, Forgetfulness And Clumsiness In An Elderly Person
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Detailed Answer:
I read your question carefully and I understand your concern.
From what you describe it seems there is a cognitive impairment which could be the beginning of dementia. The causes of that can be several. The most common is Alzheimer’s disease, followed by repeated strokes, called vascular dementia (which is certainly possible considering the episodes of dizziness and slurred speech you describe and his history of stroke in youth which means he is a person at risk). Other causes may include Parkinson’s and other rare neurodegenerative disease, thyroid deficiency, vitamin B12 deficiency.
So certainly your father needs an evaluation, initially to evaluate for other neurological signs and whether there is indeed a cognitive impairment through some tests (sort of questionnaires and simple tasks to evaluate different cognition spheres) as at times there may turn out not to be a real cognitive impairment as there are factors like anxiety or depression which can influence attention and hence affect retention of information.
If indeed there is cognitive impairment he should have a battery of tests like MRI, blood count, glucose, liver and kidney function, thyroid function, electrolytes, vitamin B12 levels. If MRI evidences stroke investigations on the cause will also be necessary. So while I understand there is some convincing to do, he will have to eventually see a physician and have some tests.
I remain at your disposal for further questions.