A 15-year-old previously healthy boy was admitted for a blunt abdominal trauma owing to cycling crash. On admission he alert; blood pressure and pulse rate were 145/95 mm Hg 75 beats/min, respectively. Physical examination result remarkable severe left-sided flank pain with guarding. No others injuries found. His urine like laboratory tests showed normal hemoglobin level, at 13.5 g/dL, hematocr...