00:01
Here it is asked that the diagnosis of cushing's disease is excluded if.
00:06
So let us just understand one by one with the respective options given to us.
00:13
So for the first option it is told that the plasma cortisol concentration at 11 p .m.
00:18
Or 12 p .m.
00:20
Is normal.
00:20
So this is not necessarily true.
00:22
In cushing's disease the normal circadian you can say rhythm of cortisol secretion is often disrupted leading to elevated levels of cortisol at times when it should be low such as at late night.
00:44
However a normal level at these times does not exclude the diagnosis.
00:49
So it is incorrect.
00:51
Okay.
00:52
So now it continues.
00:53
Cannot be the answer.
00:55
Okay.
00:55
Now next one is next for next option.
00:58
You can say that no cortisol suppression after the dexamethasone suppression test.
01:06
So this is incorrect...