2 doctors weighed in:

If you wanted to rule out addisons just as a guess for safety. Would a serum cortisol, potassium and sodium be ok?

2 doctors weighed in
Dr. Ed Friedlander
Pathology

In brief: Maybe

If you're sick enough to think you have Addison's, hopefully you're already had your serum potassium assay; it's neither sensitive nor specific.
Serum sodium varies a lot and isn't helpful. There's a cutoff value for cortisol that the lab will share that rules out Addison's, but many people fall below and will require further study, such as an ACTH stimulation test.

In brief: Maybe

If you're sick enough to think you have Addison's, hopefully you're already had your serum potassium assay; it's neither sensitive nor specific.
Serum sodium varies a lot and isn't helpful. There's a cutoff value for cortisol that the lab will share that rules out Addison's, but many people fall below and will require further study, such as an ACTH stimulation test.
Dr. Ed Friedlander
Dr. Ed Friedlander
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Dr. Armen Margaryan
Internal Medicine - Nephrology & Dialysis

In brief: Addisons

Morning serum cortisol should be the first step.

In brief: Addisons

Morning serum cortisol should be the first step.
Dr. Armen Margaryan
Dr. Armen Margaryan
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