Am J Psychiatry 1984; 141:1619-1620
Copyright © 1984 by American Psychiatric Association
Association between low plasma levels of dexamethasone and elevated levels of cortisol in psychiatric patients given dexamethasone
GW Arana, RJ Workman and RJ Baldessarini
In psychiatric inpatients, positive results on 40 dexamethasone suppression
tests (elevated cortisol levels) were strongly associated with low plasma
levels of dexamethasone. Bioavailability or pharmacokinetic factors may
contribute importantly to the outcome of the dexamethasone suppression
test.