When comparing hemodialysis and peritoneal dialysis, it can be said that
A. hemodialysis takes longer than peritoneal dialysis.
B. peritoneal dialysis involves the removal of blood from the patient.
C. hemodialysis is a step closer to the need for transplantation compared with
peritoneal dialysis.
D. peritoneal dialysis doesn’t need a dialyzer to work, whereas hemodialysis does
This is so confussing to me! I'm thinking A.
To determine the correct answer, let's break down the options and compare hemodialysis and peritoneal dialysis.
A. Hemodialysis takes longer than peritoneal dialysis:
Hemodialysis typically takes around 4-5 hours per session and is usually done three times a week. Peritoneal dialysis, on the other hand, can be done for longer durations such as overnight, but it is done daily. So, this statement is incorrect. Hemodialysis takes shorter per session but is done less often, whereas peritoneal dialysis takes longer per session but is done more frequently.
B. Peritoneal dialysis involves the removal of blood from the patient:
This statement is incorrect. Peritoneal dialysis is a procedure where dialysis fluid is introduced into the peritoneal cavity, and waste products diffuse across the peritoneal membrane into the dialysis fluid. It does not involve the removal of blood from the patient directly.
C. Hemodialysis is a step closer to the need for transplantation compared with peritoneal dialysis:
This statement is somewhat subjective and may vary from case to case. Both hemodialysis and peritoneal dialysis are forms of renal replacement therapy that can be used to manage end-stage kidney disease. Neither is necessarily a step closer to transplantation, as the decision for transplantation depends on various factors, such as the patient's overall health, candidacy for transplant, and personal preferences.
D. Peritoneal dialysis doesn't need a dialyzer to work, whereas hemodialysis does:
This statement is correct. Hemodialysis involves the use of a dialyzer, which acts as an artificial kidney to filter waste products and excess fluid from the blood. In peritoneal dialysis, the peritoneal membrane serves as the dialyzer, eliminating the need for an external device like a dialyzer.
So, based on the information discussed, the correct answer is D.