A 33-year-old member asked:
what to do if i have to take an acth hormone test tomorrow, and i need to know what to do to prepare. do what to do if i have to fast?
1 doctor answer
A Verified Doctor answered
A US doctor answered Learn more
ACTH-stim test?: Hi. Are you having an ACTH stimulation test, where they inject ACTH (1-24) aka Cosyntropin and measure cortisol in response? Assuming so, no, you do NOT have to be fasting for it. You have to do nothing special to prepare for it. If they're just testing your own ACTH (& cortisol) level, that should be drawn at 8 AM. I'm not sure exactly what's being tested in you.
Answered on Sep 29, 2016
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