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What practics helps to build a pt's immunity to hepatitis B - Vaccination A pt asks the technician "what does uremia mean?" The technician's response should be based on the uremia is - an increase of waste in the blood a Central venous catheter may be used as a vascular access when a - pt has inadequate blood vessels in the limbs before a dialysis treatment , the pt tells the Technician, "Yesterday, I felt terrible and vomited up some blood. I feel much better today." The technician can expect the pt's treatment will be modified by - decreasing the heparin dose the technician is unsure of which one of a pt's AV grafts anastomosis is arterial and which one is venous... how do you tell between the two - compress the graft in the middle and palpate each side