23rd August 2023

A 60-year-old female with a history of rheumatoid arthritis presents with sudden-onset sharp abdominal pain

A 60-year-old female with a history of rheumatoid arthritis presents with sudden-onset sharp abdominal pain. She has been taking NSAIDs regularly for pain relief. On examination, her abdomen is distended, and bowel sounds are absent.

Which investigation is most appropriate to diagnose a suspected gastrointestinal perforation?