61) ANSWER

D. Phenoxybenzamine

RATIONALE

•Due to the high level of catecholamines, both alpha and beta blockers are required, particularly alpha blockers. Phenoxybenzamine is the preferred alpha blocker.

•Pheochromocytoma is a rare catecholamine secreting tumor in the adrenal gland.

•The patient’s blood pressure and heart rate should be stablized until the patient undergoes an adrenalectomy.

•Norepinephrine and dopamine are catecholamines and should not be administered to a patient with a pheochromocytoma.

•Atropine is used for symptomatic bradycardia and is not indicated in the treatment of pheochromocytoma.