Testing a person’s blood for a type of protein called phosphorylated tau, or p-tau, could be used to screen for Alzheimer’s disease with “high accuracy,” even before symptoms begin to show ...

The test may make it easier to identify whether people with memory and thinking problems have Alzheimer’s or not. By Pam Belluck A blood test that can help diagnose Alzheimer’s disease has ...

The protein S activity test measures the activity of this substance in the blood to prevent clotting. If your physician asks for this test, tell them what medicines you are taking.

A simple £5 blood test for the protein troponin could predict a person's risk of heart attacks and strokes with greater accuracy than ever before, research suggests.

The sweat test can help doctors to diagnose cystic fibrosis. Learn about how it works, ... When a person has cystic fibrosis, the CFTR protein does not work properly. This can cause chloride, ...

Test Interpreter: C-reactive protein for ankylosing spondylitis. Medically reviewed by Stella Bard, MD — Written by Heather Grey on August 30, 2023. C-reactive protein (CRP) ...

The test, which consumers can order on their own, measures a protein linked to Alzheimer’s called amyloid beta. But it can’t diagnose cases, and the results may be needlessly stressful.

A cerebrospinal fluid (CSF) protein test shows the amount of protein that's in your spinal fluid. Discover what you can expect and why your doctor might request it.