Blood test ‘could be as accurate as lumbar puncture for Alzheimer’s detection’

The new findings have the potential to “revolutionise” diagnosis for people with suspected Alzheimer’s, experts say.

A blood test could be just as accurate as painful and invasive lumbar punctures for detecting Alzheimer’s disease, research suggests.

Measuring levels of a protein called p-tau217 in the blood could be just as good at detecting the signs of Alzheimer’s, and better than a range of other tests currently under development, experts say.