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A member asked:
Is a blood cortisol test sufficient in diagnosing cushing's or addison's? or are urine tests better?
A doctor has provided 1 answer
Tricky diagnoses: A spot cortisol is famously neither sensitive nor specific for either diagnosis. Both are rare, but missing either is deadly. If you have any reason to be concerned you are an adrenal patient, get with a competent physician who knows how to do the workup, now.
Answered 1/1/2016
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