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
A 17-year-old girl presents to the emergency depament with a stab wound to the abdomen in the anterior axillary line at the right costal margin. BP is 80/50 mm Hg, PR is 120 bpm, and RR is 28 breaths per minute. Two large-bore IV lines, a nasogastric tube, and a Foleys catheter are inseed. BP rises to 90/60 mm Hg after 2 L of Ringer's lactate. The appropriate management is which of the following? 
Select and explain. 
A. Peritoneal lavage, B. Ultrasound of the abdomen, C. Laparoscopic assessment of the peritoneal cavity, D. Exploratory laparotomy
D: Exploratory laparotomy
Answer: D: Exploratory laparotomy 
Explanation: A patient without other sources of blood loss who presents to the emergency depament with a stab wound to the abdomen and in shock should have an expeditious exploratory laparotomy. The other tests will waste precious time and are contraindicated in a patient in shock.