Author Question: A patient is suspected of having Addison's disease. His laboratory tests show low serum sodium and ... (Read 99 times)

chads108 · **on:** Aug 10, 2018

A patient is suspected of having Addison's disease. His laboratory tests show low serum sodium and chloride, elevated serum potassium, and elevated urine sodium and chloride levels.

The aldosterone cortisol levels are decreased. To make a definitive diagnosis, the physician orders an ACTH stimulation test, and the cortisol level is measured again. If the patient has Addison's disease, the cortisol level would ________. If the patient has hypopituitarism, the levels would _______.
A) Increase; decrease
B) Decrease; increase
C) Increase; remain the same
D) Remain the same; increase
E) Decrease; decrease

Question 2

In a patient who is suspected of having pheochromocytoma, measurement of which of the following urinary compounds would be the most useful?

A) Vanillylmandelic acid
B) Homovanillic acid
C) Catecholamines
D) Dopamine
E) Metanephrines