I am due to have a "short Synacthen" test on the 7th. July, I understand that it will just be an infusion then a blood test, and then I'm free to go, which will probably take about an hour? However by the 7th July I will be on 10mgs. of Pred, when I pointed this out to the Rheumatologist, he said the test can still be done, but don't take Pred on the morning of the test. I'm still a bit worried that 10 mgs of Pred will skewer the results ?
My question is has anyone had one of these tests whilst taking Pred,