Figur 6. Nomogram showing the approximate relation between 17-hydroxyprogesterone blood levels before (Baseline) and 1 hr after i.v. injection of ACTH (Stimulated) in unaffected individuals and patients that are heterozygotes or affected with mild (non-classical) or severe (congenital) 21-OHD. Modified from New et al, J Clin Endocr Metab, 1983.