Draw blood in a plain-red top or SST, transfer 1mL serum to a plastic transport tube, indicate serum/tube type on tube or requisition. Must be sent refrigerated or on dry ice.
Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
Room temp 6 hours, Refrigerated 14 days, Frozen 14 days
Evaluate adrenal carcinomas that frequently secrete large amounts of DHEA.