In New Zealand, clinical guidelines produced by the National Pediatric Gastroenterology Clinical Network recommended blood (at least the following: full blood count, erythrocyte sedimentation rate (ESR), C-reactive protein (CRP) and albumin) and fecal tests to screen for the presence of systemic inflammation and exclude any gastrointestinal infections for any children suspected of having IBD (4). Here, CRP is linked to inflammatory bowel disease.