30th July 2023

A 30-year-old migrant worker from South America presents with a one-week history of bloody diarrhoea

A 30-year-old migrant worker from South America presents with a one-week history of bloody diarrhoea and mild right upper quadrant pain. He reports weight loss of around three kilograms and feeling generally weak. Blood results show evidence of leukocytosis and a mildly raised ALT. Fresh stool microscopy shows the presence of trophozoites.

Given the likely diagnosis, what is the first line management?

Select the SINGLE most appropriate option from the list below. Select ONE option only.