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Updated: Sep 18, 2025

The 4 Mountains Test: A Short Test of Spatial Memory with High Sensitivity for the Diagnosis of Pre-dementia Alzheimer's Disease
Published on: October 13, 2016
Why testing and diagnosis for Alzheimer's disease are mission critical
1University of Oklahoma Tulsa Oklahoma USA.
Abstract:
The author, a physician who has younger-onset Alzheimer's disease (AD), recounts his recent lunch with a former coworker who has had a stroke. The author makes the point that because we now have an effective treatment for AD, and phosphorylated tau217 is a sensitive and specific screening test for AD, we should advocate for its usage in Medicare Wellness Visits, given that the adage "Time Is Brain" is just as apropos for AD as it has been in stroke care. However, at this time, Medicare is not paying for the lab test.
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