 Most providers that work in ambulances will be identified as 'Paramedics' by the public.However, in many cases, the most prevalent level of emergency pre-hospital care is that which is provided by the emergency medical responder (EMR).This is a level of practice recognized under the National Occupational Competency Profile, although unlike the next three successive levels of practice, the high number of EMRs across Canada cannot be ignored as contributing a critical role in the chain of survival, although it is a level of practice that is least comprehensive (clinically speaking), and is also generally not consistent with any medical acts beyond advanced first-aid and oxygen therapy, administration of ASA, I.M.