CDC Website Lists Tests Recommended To Screen For Exclusionary Conditions When Diagnosing Chronic Fatigue Syndrome (CFIDS)

The CDC website has provided a listing of recommended testing which should be done when a physician is considering a diagnosis of chronic fatigue syndrome (CFS) in a patient presenting with severe fatigue.

These include: CBC, SED rate, total protein, albumin, alanine aminotransferase, globulin, alkaline phosphatase, calcium, blood urea nitrogen (BUN), phosphorus, glucose, electrolytes, creatinine, TSH, and a urinalysis. The CDC states that “patients with unusual findings in the above set of tests probably have an underlying disorder other than CFS that the physician may successfully diagnose with further testing. However, more than 90% of patients presenting with severe fatigue will test at normal levels for the series of tests listed above.” The CDC site also lists tests that are still considered experimental in diagnosing CFS including serological testing for EBV, enteroviruses, retroviruses, and HHV-6; testing for candida albicans; immunological testing for NK cells and cytokine assays; and imaging testing such as MRI, SPECT, and BEAM scans.

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