Stephen J. Schueler, M.D.

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Chronic Fatigue Syndrome Evaluation

The evaluation of chronic fatigue syndrome begins with a medical history and physical exam.

In order to diagnose chronic fatigue syndrome, a person must have severe fatigue for more than six months, and have 4 of the following symptoms:

Physical findings in someone with chronic fatigue syndrome may include:

There are no special tests available to confirm the diagnosis of chronic fatigue syndrome. The diagnosis is made after illnesses that cause similar symptoms have been excluded through testing.

Tests that may be used to evaluate chronic fatigue syndrome include:

Chronic Fatigue Syndrome Similar Conditions

Continue to Chronic Fatigue Syndrome Treatment

Last Updated: Dec 7, 2010 References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
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PubMed Chronic Fatigue Syndrome References
  1. Edmonds M, McGuire H, Price J. Exercise therapy for chronic fatigue syndrome. Cochrane Database Syst Rev. 2004;(3):CD003200. [15266475]
  2. Jammes Y, Steinberg JG, Mambrini O, Bregeon F, Delliaux S. Chronic fatigue syndrome: assessment of increased oxidative stress and altered muscle excitability in response to incremental exercise. J Intern Med. 2005 Mar;257(3):299-310. [15715687]
  3. Reid S, Chalder T, Cleare A, Hotopf M, Wessely S. Chronic fatigue syndrome. Clin Evid. 2004 Dec;(12):1578-93. [15865734]
  4. Sha MC, Callahan CM, Counsell SR, Westmoreland GR, Stump TE, Kroenke K. Physical symptoms as a predictor of health care use and mortality among older adults. Am J Med. 2005 Mar;118(3):301-6. [15745729]
  5. ter Wolbeek M, van Doornen LJ, Kavelaars A, Heijnen CJ. Severe fatigue in adolescents: a common phenomenon? Pediatrics. 2006 Jun;117(6):e1078-86. [16740810]
  6. Viner R, Christie D. Fatigue and somatic symptoms. BMJ. 2005 Apr 30;330(7498):1012-5. [15860829]
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