So, a well-looking child turns up to triage and gets given a high triage priority, simply because they have a Congenital Metabolic Disorder. Do we really have to jump to it, put in an IV cannula, and call the specialist? There are individual subtleties in managing these children with Inborn Errors of Metabolism, but a few common principles apply. This short tour of a few commoner conditions should give you a handle on this important group of patients.