20th July 2020

A 40-year-old male presents to his GP with symptoms of epigastric pain and abdominal bloating

A 40-year-old male presents to his GP with symptoms of epigastric pain and abdominal bloating. The pain often begins after meals and has been occurring throughout the course of the last 2 weeks. The patient was previously diagnosed with a gastric ulcer 5 years earlier and successfully treated with H. pylori eradication therapy. He is worried the infection has returned and wants to be investigated to see if he needs another course of treatment. 

Which THREE of the following investigations would be able to identify if H. pylori was present? Select THREE options only.