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?