Dialysis Is a Medical Process Used to Treat Patients Whose

Dialysis is a medical process used to treat patients whose kidney function is below normal.During dialysis,blood is removed from the body and filtered by an artificial membrane,and plasma and its proteins are separated from the cells.Dialysis patients,who will have blood withdrawn,dialyzed,and then replaced,are always weighed when they enter the facility and then weighed carefully again before they leave,because

A) even small changes in body weight may signify changes in blood volume and therefore blood pressure.
B) many people who have dialysis are diabetic and must control their weight carefully.
C) dialysis removes blood proteins,and these weigh more than other blood components.
D) dialysis is likely to cause edema,and such swelling must be controlled.