Knowledge and skill in performing support duties for complex diagnostic tests and/or specialized practices or procedures, which include preparing the patient, assisting in the diagnostic examination, preparing & handling specialized instruments or other specialized equipment, & monitoring the patients condition before, during & following the procedure. VHA locations include, but are not limited to, VA hospitals and associated clinics, community living centers (CLCs), community-based outpatient clinics (CBOCs), domiciliary units, Vet centers and VA-leased medical facilities.