Today consultant from "memory clinic" came to assess MIL, diid memory test. I think she scored 27 or 28/30. He said she didint have dementia or Alzheimers but had "age related shortterm memory loss". He will recheck test in a few months to see if there's any change. Is this normal? She is really struggling with day to day things because of lack of memory, even today had forgotten he was coming and it was only beacuse I called round early morning that she was out of bed in time for the appointment.
A big problem in diagnosing dementia is that people have individual starting points in the first place - this reflects their educational background, general intelligence and so forth. So some people will always "score" lower in any circumstance. Also, the score will fluctuate from day to day (if someone is feeling unwell or tired, for example) - or even if they happen to dislike the person giving the test or not!
It is also correct that many people have a decline in their abilities that accompanies old age.
In the very beginning it can be difficult to separate what might be the start of dementia and simple declines due to age.
However, in dementia the decline will relentlessly continue and will reach levels that are abnormal for any age.
The test you speak of is really more useful in establishing a bench test mark against which future tests are measured. In this way it is possible to measure the extent and rate of decline over time.
Usually, any "score" of 25+ would be regarded as "normal" within the general population. Some attemp will be made to adjust it for mitigating factors, for example, dyslexia, educational lack, visual difficulties, speech/hearing impairments and so on.
For these reasons the test score is only part of the diagnostic process. Of more importance is how the patient presents and even more their history as stated by people who know them well. Dementia cases are nearly always initially reported by families who recognise abnormal behavior in the person.
A diagnosis of dementia will be fairly firm if there is evidence that there is a decline, that it is continuing and that it is more rapid and/or severe than might be expected of a consequenc eof old age. The more rapid or severe the decline the stronger the liklihood of dementia.
Different diseases progress in different ways. Alzheimer's for example is usually characterised by a relatively slow and steady decline; vascular dementia by periods of stability spaced between rapid and more severe declines.
Thus a score of 27 only indicates that the person is in the "average normal" range and that reports of decline may be simply those associated with age in some people. A test in say six months time is more siginificant. A lower score combined with more reports of worsening symptoms would be a strong indicator of a problem but even then it is not definitive.
One of the great problems of dementia is that there is no definitive diagnostic test, physical or otherwise.