This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
All of the following are features of pheochromocytoma except - 
Select and explain. 
A. Hypertensive paraoxysm, B. Headache, C. Orthostatic hypotension, D. Wheezing
D: Wheezing
Answer: D: Wheezing 
Explanation: Most adrenal medullary tumours secrete norepinephrine or epinephrine or both and produce sustained hypertension. 
Sometimes catecholamines are released in spurts which produce paroxysmal hypertension.

Hypertension when episodic is accompanied by other manifestations of catecholamine excess such as : 
-Palpitations
-Tachycardia
-Feeling of anxiety
-Excessive sweating
Headache, palpitation and diaphoresis constitute the classic triad of pheochromocytoma.
Paroxysmal hypertension return to normal when catecholamine level becomes normal.
Orthostatic hypotension occurs because of diminished plasma volume and blunted baroreceptor reflex.