Answer to Pharmacology MCQ 466

on with 0 comments



Pheochromocytoma: Diagnosis, Localization, and TreatmentThe Correct Option is C

Phenoxybenzamine binds covalently to the alpha receptor, thereby producing an irreversible (insurmountable) blockade. The other agents are competitive pharmacologic antagonists - ie, their effects can be surmounted by increased concentrations of agonist. This difference may be important in the treatment of pheochromocytoma, because massive releases of catecholamines from the tumor may overcome a reversible blockade.

Category: Pharmacology MCQs

POST COMMENT

0 comments:

Post a Comment

Is there something you wish to add? Have something to say? Feel free to leave a comment.