In a patient diagnosed with pheochromocytoma, what is the appropriate preoperative pharmacological management to control hypertension before surgery?
APhenoxybenzamine and propranolol
BPropranolol
CNitroglycerine
DPhentolamine
A patient with a pheochromocytoma is secreting large amounts of norepinephrine into the bloodstream. In a normal individual, this compound is usually released from the adrenal medulla in response to which of the following?
AAcetylcholine
BNormetanephrine
CMetanephrine
DEpinephrine
Which of the following best describes the hormonal profile in Cushing's disease?
ADecreased ACTH and decreased cortisol levels
BIncreased ACTH and decreased cortisol levels
CIncreased catecholamines
DIncreased ACTH and increased cortisol levels
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