A critical care nurse is caring for a trauma patient who has gone into acute renal failure. The critical care nurse knows that he can set up, initiate, maintain, and terminate what system of dialysis for this patient?
A) Continuous ambulatory peritoneal dialysis
B) Continuous venovenous hemofiltration
C) Continuous venovenous hemodialysis
D) Peritoneal dialysis (PD)
Ans: B
Feedback: Continuous venovenous hemofiltration (CVVH) is used to manage acute renal failure. Blood from a double-lumen venous catheter is pumped (using a small blood pump) through a hemofilter and then returned to the patient through the same catheter. CVVH provides continuous slow fluid removal (ultrafiltration); therefore, hemodynamic effects are mild and better tolerated by patients with unstable conditions. CVVH does not require arterial access, and critical care nurses can set up, initiate, maintain, and terminate the system. The nurse cannot set up, initiate, maintain, or terminate the system for peritoneal dialysis.
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