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Saturday, 18 May 2013

Q&A : Cushing Syndrome

Q :  Regarding Cushing Syndrome, all the following are true, EXCEPT:
1- Hypokalemia and hyperpigmentation suggests excess amount of  ACTH secretion
2- Glucoma is a recognized complication
3- Polyuria is always secondary to diabetes mellitus
4- The preferred initial screening test is dexamethasone suppression test
5- Trans-spenoidal resection of a piuitary adenoma is followed by slow recovery of corticotroph function

A :  The correct answer is the statement number 3.
      Polyuria can be due decreased urine concentrating ability of the kidneys.

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