The Lumipulse Alzheimer's blood test is the first of a new generation of tests that may replace brain scans and spinal taps to detect the disease.

The FDA has approved the first blood test to detect early Alzheimer’s replacing invasive scans Learn how this game-changing tool could transform diagnosis and treatment ...

Positive and negative tests are pretty much self-explanatory, but what if yours comes back "inconclusive" or "indeterminate ... “depending on what type [of] test, specimen collection, method ...