Note: Deficiency of 11b-hydroxylase activity also causes an increased concentration of 17a-hydroxyprogesterone in the peripheral circulation but measurement of 11-deoxycortisol should be used for this diagnosis.
Male and female 0-5 days 0 - 3nmol/L.
Male and female 5 days to 16 years 0 - 4nmol/L.
Male 16 and over 0 - 5nmol/L.
Female 16 and over 0 - 5nmol/L - results may be higher in luteal phase
Post 250ug Synacthen stimulation
Normal at 30 mins < 10nmol/L
In neonates the sample should be taken at least 48 hours post birth.
London SE5 9RS
Last updated: 06/08/2021