New Alzheimer’s Blood Tests Are Easy. But Do You Really Want One? Despite the potential value of new blood tests promoters say can identify Alzheimer’s disease long before symptoms arise, these tests raise many important issues that patients and their physicians should carefully consider before requesting or administering them. Because of those concerns, medical thought leaders are offering important guidance about how their colleagues should talk to their patients about the tests and, especially, about positive results. One new study published in the journal JAMA Neurology identifies one concern. It finds that while early tests may accurately predict a higher…