Last updated: Tuesday, 27, July, 2010
|Key Information||Appropriate Tests|
Fatigue is defined as 'pathological' when it lasts more than 6 months and interferes with daily activities.
Investigation should be directed by the findings on history and physical examination, to exclude underlying disease, including FBC, TSH, CRP electrolytes, LFTs, creatinine.
There are no diagnostic tests for the chronic fatigue syndrome.