MRCP2-3931

MRCP2-3931

A 52 year-old man presents with a ten-hour history of diffuse abdominal pain, nausea and vomiting. The severity of the abdominal pain has been increasing and is currently rated at 7/10 on the pain scale with evidence of guarding. The patient is currently undergoing peritoneal dialysis for end-stage renal failure and has noticed cloudy peritoneal bags over the last eight hours. He is taking ramipril, alfacalcidol, erythropoietin and simvastatin. All his vital signs are stable and peritoneal dialysis fluid has been sent for microscopy, culture and sensitivity.

What is the most appropriate next step in managing this patient?