one dose of metyrapone ( 1.5 g ) administered at 6 am , with subsequent measurement of plasma acth , 11-deoxycortisol , or 17-hydroxycorticosteroids ( 17-ohcs ) ( cortisol + 11-deoxycortisol ) at noon and 2 pm allowed an accurate assessment of the pituitary-adrenal reserve .
C0000163
17-hydroxycorticosteroids
C0010139
11-deoxycortisol