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Dexamethasone Suppression Test
|Test group||Dexamethasone Suppression Test|
|Sample type||see Cortisol|
|Normal range||See Additional Information|
|Additional information||For Depressive Illness based on Carrollet al. Arch Gen Psych 1981;38:15.
1 mg dexamethasone is given at 2300 on day 1, and serum cortisol levels are obtained 18 and 24 hours later (1600 and 2300 on day 2). A cortisol level of > 4 µg/dL (> 110 nmol/L) in either day 2 specimen is considered abnormal.
Indomethacin and similar drugs may give false-negative results, and the diagnostic value of this test is in any case dubious.
|Last Updated||4/21/2008 12:23:59 PM|