Delayed Alzheimer's diagnosis leads to missed treatment windows and accelerated cognitive decline

Patients and families experience agonizing uncertainty waiting months for definitive Alzheimer's diagnosis through expensive PET/MRI scans and cognitive testing, during which irreversible neurodegeneration progresses unchecked. Current diagnostic pathways are slow, costly, and inaccessible in routine clinical settings, forcing patients into advanced stages before confirmation. A rapid, accurate blood test could enable early intervention when treatments are most effective, but this capability hasn't yet reached everyday clinical practice.