nursing assesments

Hello,

I am an LPN from the province of Quebec. however, here in Quebec we call LPNs` Registered nursing assistants(RNA), kinda of dull name, but we are in the process of changing that. I don`t know how it is in the USA, or the rest of Canada, here in Quebec the RNs`pretty much dominate nursing care. Especially, when it comes to making a nursing assesment. RNAs`or Lpns`s (whatever you want to use) in Quebec, can only implement the Nursing care plan. Everything else is done by the RN. For example if a patient complains of a headache, before giving a tylenol from a standing order, an RN has to asses a patient. If a patient is complaining of a cough, and soar throat, again the RN has to asses. My question is it the same practice elsewhere? Do RNs` have to asses everything before and LPN can use an intervention.