This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Trauma, Subject name: Surgery
[{'content': 'A 17-year-old boy is admitted to the hospital after a road traffic accident. Per abdomen examination is normal. After adequate resuscitation, his pulse rate is 80/min and BP is 110/70 mm Hg. Abdominal CT reveals 1 cm deep laceration in the left lobe of the liver extending from the dome more than half way through the parenchyma. Appropriate management at this time would be: \nSelect and explain. \nA. Conservative treatment, B. Abdominal exploration and packing of hepatic wounds, C. Abdominal exploration and ligation of left hepatic aery, D. Left hepatectomy', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Stable + Left lobe Laceration= no organ bleeding- Conservative Treatment of HEPATIC INJURY - Mechanism of blunt hepatic trauma: Compression with direct parenchymal damage and shearing forces, which tear hepatic tissue and disrupt vascular and ligamentous attachments - Most liver injuries (>85%) involves segments 6,7 and 8 of the liver. - Most liver injury bleeding is venous; and therefore low pressure, tamponade is readily performed Protocol for Liver Trauma:', 'role': 'assistant'}]