Synacthen Stimulation Test

A Synacthen stimulation test assesses the cortisol response to Synacthen, which is synthetic ACTH. In general, the test involves a baseline blood sample, an injection and a second blood sample about 30 minutes later.

The appointment usually takes 45–60 minutes. Please enquire so the clinic can confirm the appointment requirements before arranging your test.

What does a Synacthen stimulation test assess?

It assesses how cortisol responds to Synacthen, which is synthetic ACTH.

What generally happens during the test?

In general, a baseline blood sample is taken, Synacthen is given by injection, and a second sample is taken about 30 minutes later. The appointment usually takes 45–60 minutes.

How long do laboratory results take?

Laboratory results are usually available in 1 day.

How do I arrange the test?

Please enquire so the clinic can confirm the appointment requirements and arrange the test with you.