This is the problem with seeking diagnosis and treatment for dementia related diseases. The medical professionals don't even take the result of a standardized screening test seriously enough to refer them to those that can diagnose!
So Mom made a 24 out of 30 on a cognitive assessment test? Let's just pretend it's ok and go forward. The problem is that you can not go forward. You only have the doubts and questions of before... does she doesn't she? Some doctors go ahead and prescribe medication to treat dementia but yet do not put the diagnosis on the chart or tell the family. Some don't even give the medications. The very sad part is, the medications do a better job in the early stages. The stage where doctors are ignoring the problem. In the later stages when we all know what it is without a doctor's help, these medications are not nearly as beneficial but get prescribed frequently.
The multivitamin is a JOKE. There is not enough B vitamins in a multivitamin to make a difference. If there is a B vitamin deficiency (which can be easily determined by blood test) then it takes a lot more than what is in a multivitamin to make a difference.
If your sister are with your Mom, and they understand dementia, then they probably already know what is going on. They know Mom has cognitive impairment (dementia). What they don't know is the type or cause. My major complaint with the medical community and their lack of ability to recognize, diagnose, and treat dementia related cognitive decline is that there are causes that are very treatable especially if caught early.
This is why I encourage those who suspect their loved ones suffer from cognitive decline to find a doctor that will do the appropriate testing to rule out treatable causes and to then give a definitive diagnosis. If doctor one just passes it off as dementia then go for a second option. Find a doctor that specializes. Go to a memory clinic, geriatric psychiatrist, geriatric neurologist, or dementia specialist. Do not stop with the GP who may have absolutely no idea what to do for your loved one except pat you on the back and tell you to come back in 6 months. Ask for referrals!! Change doctors!! Whatever it takes.
Mild Cognitive Impairment is just that... Mild Cognitive Impairment. It is one of the dementia diagnosis. It may be the early stages of something more sever that is not diagnosable at the moment. It tells you that you are in the early stages of something that may or may not develop. It means you need to be under the care of a cognition specialist, tested again in 6 to 9 months to see if there is a progression, and followed up with to determine if it is progressing. This is the critical stage when medications and follow up can help. The problem is, most ignore the the symptoms (doctors and family) until the problem is more advanced. That is why an early MMSE, with proper interpretation, can be so important. Even a score of 29 should be followed up with further testing, repeated periodically, to determine the advancement of the cognitive decline.
I htink a lot of this has to do with awareness. Many do not understand this disease, unless they have had a loved one with the disease. Doctors do not have hope to give. There is no cure or treatment. It is a diagnosis worse than cancer. It is a terminal illness with no sure fire diagnostic test. You can't take a blood test and know you have it. For these reasons many doctors why away. So we the care givers keep trying to educate