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New Blood Test Detects Alzheimer's Disease Early

By Nordics Today News Team

Norwegian hospitals now offer a revolutionary blood test that detects Alzheimer's disease with 90% accuracy. The simple test replaces complex procedures like spinal taps, making early diagnosis more accessible. This breakthrough could transform dementia care across Scandinavia.

New Blood Test Detects Alzheimer's Disease Early

Akershus University Hospital launched Norway's first blood tests for Alzheimer's detection last Monday. Swedish researchers developed this simple blood test that general practitioners can administer. Patients experiencing cognitive decline can now take the test, with eligibility starting at age 50.

The test demonstrates impressive accuracy, correctly identifying Alzheimer's presence in 90 percent of cases. Dementia serves as an umbrella term for multiple brain diseases, with Alzheimer's representing the most common form.

Tormod Fladby, head of the Neurological Department at Akershus University Hospital and professor at the University of Oslo, calls this development a crucial advancement. He explains that previous diagnostic methods required either spinal taps or advanced imaging with radioactive substances. These complex procedures limited early intervention opportunities before dementia developed.

"Now we can combine blood tests with cognitive testing and brain imaging," Fladby stated. "This approach proves much simpler for hospitals and especially for patients. Spinal taps involve hospital visits and patient discomfort."

Early diagnosis remains critically important according to medical experts. Identifying patients before dementia develops enables interventions that can slow disease progression. The test also opens possibilities for targeted treatments for patients experiencing cognitive changes from conditions other than Alzheimer's.

Currently, only a small percentage of patients receive diagnosis during pre-dementia stages. New medications that can slow Alzheimer's progression are continually emerging, making early detection increasingly valuable.

From a societal perspective, this innovation addresses a growing challenge. Dementia cases are rising rapidly, creating strain not just for patients and families but also for municipalities managing healthcare budgets and staffing.

"When we can direct more effective efforts toward this patient group within local communities, this represents an important resource allocation," Fladby explained.

While currently only available at Akershus University Hospital, the service benefits people across Norway. There are no restrictions on sending blood samples for analysis, and researchers need to test results against large patient groups. This technology can serve the entire country.

The Alzheimer's blood test represents a major step forward in neurodegenerative disease management. Its accessibility could transform how healthcare systems approach cognitive decline, potentially reducing future dementia cases through earlier intervention. Norway's healthcare infrastructure appears well-positioned to implement this technology broadly, though expansion timelines remain unclear.

Medical professionals anticipate this testing approach will become standard practice as validation continues. The combination of scientific innovation and practical implementation demonstrates Scandinavia's strength in medical research translation.

Published: November 15, 2025

Tags: Alzheimer blood test Norwayearly dementia detectionNorwegian medical innovation