Pulmonary Exacerbations are characterised by intermittent episodes of acute worsening of symptoms on a background of chronic disease which usually warrants a change in treatment. Symptoms defining an exacerbation may include change in sputum volume or colour, increased dyspnoea, cough, malaise, fatigue, anorexia or radiological changes.
DIOS is defined as a short history (days) of abdominal pain and/or distension with a faecal mass in the ileo-caecum, but without signs of complete obstruction.