85 A 25-year-old man is admitted to the intensive care unit after exploratory laparotomy and repair of multiple bowel injuries from several gunshot wounds. Several hours after admission, the respiratory therapist calls to alert you that his peak airway pressures have increased significantly. The bedside nurse also reports an increase in his vasopressor requirement, and a decrease in urine output. On examination, his abdomen is tense, with a midline dressing intact, and clear breath sounds bilaterally. The most likely diagnosis is
(A) Acute myocardial infarction leading to pulmonary edema
(B) Hypovolemia from inadequate fluid resuscitation
(C) Hemorrhage from an unrecognized injury
(D) Abdominal compartment syndrome from bowel edema or hemorrhage