Q. A 23-year-old male patient presents to the emergency department with right lower quadrant abdominal pain, which started 24 hours ago. The pain was initially around the umbilicus and then localized to the right lower quadrant. The patient rates the pain as 7 out of 10 on a pain scale. He also reports a loss of appetite, mild nausea, and two episodes of vomiting. He denies diarrhea, chest pain, or any urinary symptoms. His past medical history is unremarkable. On physical examination, he appears uncomfortable and prefers to lie still. His temperature is 100.6°F (38.1°C), blood pressure is 120/75 mmHg, pulse rate is 90 bpm, and respiratory rate is 18 breaths per minute. On abdominal examination, there is tenderness and rebound tenderness at McBurney's point. Rovsing's sign is positive. Bowel sounds are slightly decreased. The rest of his examination is unremarkable. Laboratory investigations show a white blood cell (WBC) count of 14,000 /µL with 80% neutrophils. His comprehensive metabolic panel is within normal limits. What is the most appropriate next step in management in this case?