A 48 year old man has moderate epigastric pain for 2 days and is seen at his GP surgery. He had a duodenal ulcer 6 months ago and was treated with Helicobacter pylori eradication therapy. Which is the most appropriate test to confirm Helicobacter pylori eradication?

A 48 year old man has moderate epigastric pain for 2 days and is seen at his GP surgery. He had a duodenal ulcer 6 months ago and was treated with Helicobacter pylori eradication therapy. Which is the most appropriate test to confirm Helicobacter pylori eradication?

A 70 year old woman has lower abdominal pain for 5 days and is seen in her GP surgery. She feels unwell and has had episodes of shivering. There is a tender mass in the left iliac fossa. Which is the most likely diagnosis?

A 43 year old man has felt faint and fallen when trying to stand from a chair. Investigations: Sodium 119 mmol/L, Serum osmolality 260 mOsmol/kg. Which is the most likely cause?

A 24 year old man has mild discomfort in his left scrotum for 4 months. He has palpable worm-like structures. Which is the most appropriate next investigation?

An 18 month old girl has poor weight gain and is seen in the GP surgery. She has loose stools for several months. Which is the most likely underlying cause?