Nurse spent five years improperly using insulin pens
                                
                                
                                    (Newser) -
                                    A Wisconsin health clinic has warned that 2,345 patients may have been exposed to HIV, hepatitis, or other blood-borne diseases by a nurse who improperly used diabetic injection devices. The nurse, whose job involved teaching newly diagnosed diabetics how to use insulin pens, used the same pen every time...