>7 ng/dL over baseline in rapid screening test
>40 ng/dL over baseline in 1- or 3-day test
. Green-top tube.
■ Differentiate between pituitary-induced adrenal dysfunction
and adrenal insufficiency.
■ Test involves obtaining a baseline ACTH level, administering
cosyntropin (a synthetic ACTH-like drug) over a prescribed
period, and drawing repeat ACTH levels.
