I have been on Prednisone off and on for years for Asthma. Adrenals not bouncing back. Is the .08 cortisol level taken by blood test sustainable or should I worry?
A point in time cortisol test is not valid to judge, you have to do a stim test. Based on the low test (guessing as without range can't know), the doc should order it.
Get copies of testing. Ranges vary.