Hi SazzyCo. You can get a job at the hospital as a Healthcare Assistant, which you are trained for 'on the job'. This is what I do. If you want to be a nurse, you would have to do a uni diploma or degree. A Healthcare Assistant (HCA) does most of the personal care of patients (i.e - washing / dressing / taking to toilet etc) and also takes blood pressure etc, but doesn't deal with handing out drugs or taking bloods etc. I think it varies from hospital to hospital.
If you want to know anything else then i'll try to help.
hth
N