Short Synacthen Test

Diagnostic Use

To assist in the investigation of suspected adrenal insufficiency.
SST can also be useful in the characterisation of 21-hydroxylase deficiency (Congenital Adrenal Hyperplasia).

After a basal cortisol blood test is taken, Synacthen is administered to stimulate the secretion of cortisol from the adrenal glands. Cortisol is then taken again at one or two time points (30 or 60 mins) post administration. Inadequate response to Synacthen indicates adrenal insufficiency and warrants further investigation.


Endocrine Test Centre

Delphic Registration Code

SCO1 (pre) SCO2 (post)


ACTH stimulation test
Serial Cortisol

Turnaround Time

1 day

Test Code