NATIVIDAD MEDICAL CENTER REPRESENTATIVES ANNOUNCED THAT THEY WILL BE OFFERING FREE TESTING FOR PEOPLE WHO HAVE UNDER GONE CERTAIN PROCEDURES. THAT AFTER IT WAS DISCOVERED THAT THE STERILIZATION BEING PERFORMED ON THE DIAGNOSTIC INSTRUMENT KNOWN AS AN ENDOSCOPE WAS INADEQUATE. HOSPITAL OFFICIALS HAVE CONTACTED CLIENTS WHO MAY HAVE A LOW RISK OF INFECTION AND OFFERED FREE TESTING FOR , HEPATITIS C, HEPATITIS B AND HIV.