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.

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 ...

To check if you have a cancer called multiple myeloma, your doctor may ask you to get a test for M protein.If M protein shows up in your blood or urine, it's a sign you might have that disease or ...

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 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.

Total protein tests measure the amount of protein in a person's urine or blood. Learn about the test, its uses, and typical protein levels.

A calprotectin stool test detects levels of calprotectin in stool. This protein indicates bowel inflammation. It can help diagnose and monitor conditions such as inflammatory bowel disease (IBD ...

Quest Diagnostics on Monday launched the first direct-to-consumer blood test to detect abnormal levels of beta amyloid, a key Alzheimer's disease protein that can appear years before dementia ...