This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Poal Hypeension, Subject name: Surgery
[{'content': 'Which of the following agents is recommended for medical treatment of variceal bleed? \nSelect and explain. \nA. Octreotide, B. Desmopressin, C. Vasopressin, D. Nitroglycerine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Somatostatin and /or its analog octreotide are the agents of choice for medical management of variceal bleed. Drugs used in Poal hypeension Drugs decreasing poal blood flow Drugs decreasing intrahepatic resistance Non-selective beta blockers Vasopressin and Terlipressin Somatostatin and Octreotide Nitrates Alpha-blockers Angiotensin receptor blockers', 'role': 'assistant'}]