2 doctors weighed in:

Could a cushings lab test be incorrect?

2 doctors weighed in
Dr. Richard Shewbridge
Internal Medicine - Endocrinology
1 doctor agrees

In brief: It can be tricky!

Testing for cushing syndrome (overproduction of cortisol) can be tricky because cortisol production occurs on a circadian rhythm (high in the morning, low at night).
The correct test needs to be done, and collected properly. Sometimes, the tests to confirm cushing syndrome need to be done several times over a few months, to be sure it's not being missed.

In brief: It can be tricky!

Testing for cushing syndrome (overproduction of cortisol) can be tricky because cortisol production occurs on a circadian rhythm (high in the morning, low at night).
The correct test needs to be done, and collected properly. Sometimes, the tests to confirm cushing syndrome need to be done several times over a few months, to be sure it's not being missed.
Dr. Richard Shewbridge
Dr. Richard Shewbridge
Thank
Get help from a real doctor now
Dr. Jack Hinkle
Board Certified,
385K people helped
Continue
108,000 doctors available
Read more answers from doctors