Chronic fatigue syndrome laboratory tests

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

• 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.

Template:WH Template:WS