MSFinals-1495
A 59-year-old man presents to the Emergency Department with right upper quadrant pain, fever and chills for the last two days. His past medical history is significant for gallstone disease which has not been followed up for some time. He is febrile, but his other observations are normal.
Physical examination is remarkable for jaundice, scleral icterus and right upper-quadrant pain. There is no abdominal rigidity, and bowel sounds are present.
His blood test results are shown below.
Investigation Results Normal value
White cell count (WCC) 18.5 × 109/l 4–11 × 109/l
C-reactive protein (CRP) 97 mg/dl 0–10 mg/l
Bilirubin 40 µmol/l 2–17 µmol/l
Which of the following is the best next step in management?