Chronic fatigue syndrome laboratory tests

Overview

 * The Centers for Disease Control (CDC) describes CFS as a distinct disorder with specific symptoms and physical signs, based on ruling out other possible causes. CFS is diagnosed after '''excluding other possible causes of fatigue.


 * A diagnosis of CFS must mainly based on clinical presentation which includes the:
 * absence of other causes of chronic fatigue,
 * at least four CFS-specific symptoms, and
 * extreme, long-term fatigue


 * Therefore, there are no specific tests to confirm the diagnosis of CFS.