Cushing's or "Normal"

[ampky]

My Endo did a blood cortisol test on me at 2:00 p.m. The result was 15.7 ug/dl. Is this within limits for I am tired all of the time?

Thank you!!

[rumpled]

Yes - a single cortisol test is not good enough to tell anything. Several sets of testing should be done.
Get copies of all the testing.

[ampky]

Unfortunately, a range wasn't given. It's hard to see if this is "normal" given the time. I go back to the Endo in six weeks (at 1:30 pm in USA). Should I ask for the ACTH test or any other tests for a diagnosis?

Thanks for your time!

[rumpled]

Without range, it is hard to say. A test at 2pm is in general, a bad time for being diagnostic - it is normally done fasting at 8am.