You are a GP Registar and are reaching the end of your Friday afternoon clinic list. Your next patient is Tania Hunter.

Tania is 23 years old and looking through the computer records you see that she has a past history of asthma but hasn't attended the clinic for a few years.

You ask Tania how you can help her today?

She says that she has been having very frequent diarrhoea for the last 3 days with stomach pains, nausea and vomiting.