Final answer:
A patient must be hemodynamically stable to be considered for continuous peritoneal dialysis. Hemodialysis is required multiple times a week to manage waste buildup in the bloodstream.
Step-by-step explanation:
The criterion required before a patient can be considered for continuous peritoneal dialysis is that the patient must be hemodynamically stable. Hemodialysis and peritoneal dialysis are two forms of dialysis used to treat kidney failure. In hemodialysis, a patient's blood is passed through a dialysis machine where waste products such as urea and excess water are removed. Continuous peritoneal dialysis is an alternative method that can often be performed at home.
Patients undergoing hemodialysis need to do this procedure multiple times a week because it is not a continuous process, and waste materials constantly build up in the bloodstream. Hemodialysis sessions can last several hours and are needed to maintain a manageable level of waste products in the blood.