Certified Dialysis Nurse Practice Test

Continuous Renal Replacement Therapy (CRRT) is recommended for patients with unstable hemodynamics due to its ability to provide gentle, continuous renal replacement. This method allows for the gradual removal of waste products and excess fluids, which is particularly beneficial for patients who may not tolerate the rapid fluid shifts and volume changes associated with traditional hemodialysis.

CRRT operates over 24 hours, which minimizes hemodynamic instability that might arise from the abrupt changes typical in intermittent dialysis sessions. This constant adjustment helps maintain stable blood pressure and fluid balance, making it a preferred choice for critically ill patients or those with significant cardiovascular complications. The flexibility in adjusting the rate of filtration and ultrafiltration also contributes to better management of these patients' unique needs.

In contrast, hemodialysis sessions can lead to rapid changes in fluid status that may exacerbate hemodynamic instability. Peritoneal dialysis, while also beneficial across various populations, is generally not utilized in acute care settings for patients with unstable hemodynamics. Home dialysis is more suited for patients with stable conditions who can manage their treatments independently. Thus, CRRT's design and operational framework directly support the care of patients whose stability is a significant concern.