Dexamethasone suppression test (high-dose, overnight), serum or plasma
8:00 AM serum cortisol level: <5 mcg/dL
[<140 nmol/L]
SST, PPT, green
$$
Give 8 mg dexamethasone dose at 11:00 PM. At 8:00 AM, draw cortisol level.
There's more to see -- the rest of this topic is available only to subscribers.