The study, published in Nature Communications, involved 174 people who completed the home kit and posted their blood samples back to a lab.
Dr Sheona Scales, of Alzheimer’s Research UK, said: “Finger-prick blood tests could revolutionise dementia diagnosis, they offer a low cost, scalable way to identify people who may be at higher risk of Alzheimer’s disease and who should be offered further checks.”
She added that larger studies were still needed to confirm how well the test worked in everyday healthcare.
