when studying for the nclex remember RN has to do all the teaching and assessments (this always includes new admissions, discharges, and transfers). You can delegate tasks like trach care, dressing changes yada yada to an LPN if they know and understand what there doing and/or you can tell him or show them a policy or protocol that lists out step by step. Then the NA can do vitals (but they have to report them to the nurse so the nurse can assess them) and they do bathing feeding pts (unless the patient has a internal chemo device then the nurse usually does everything cause you have to limit the time and exposure). As far as meds. i think LPNs can do them all except pain meds (i dont think they can get into the pixis) and giving pain meds include assessment of pain. idk if that helps but i hope a lil. As far and the pts with pneumo the RN can teach cough and deep breathing exercises and then the LPN can encourage it after its initailly taught. then the ADLs and vitals go to the NA.