Question

CRRT.

Hint:

CRRT offers a continuous, gradual approach to dialysis, making it ideal for critically ill patients who cannot tolerate intermittent dialysis.

Answer 1

Step 1: Understanding Continuous Renal Replacement Therapy (CRRT).
Continuous renal replacement therapy (CRRT) is a dialysis modality used in critically ill patients, especially those with acute kidney injury (AKI) who require hemodialysis but are too unstable for traditional intermittent hemodialysis. Unlike conventional dialysis, CRRT is performed continuously over a 24-hour period, allowing for gentler fluid and electrolyte removal.

Step 2: Indications for CRRT.
CRRT is typically indicated for:

Severe Acute Kidney Injury (AKI): Especially when fluid overload, electrolyte disturbances, or acid-base imbalances are present and cannot be corrected by other means.
Hemodynamic Instability: Patients who are too unstable for intermittent hemodialysis due to hypotension or shock.
Severe Toxin Clearance: In cases of poisoning or drug overdose, where continuous removal of toxins is required.

Step 3: Types of CRRT.
CRRT has several modes, including:

CVVH (Continuous Veno-Venous Hemofiltration): Primarily removes solutes via convection and water via filtration.
CVVHD (Continuous Veno-Venous Hemodialysis): Uses both convection and diffusion for solute removal.
CVVHDF (Continuous Veno-Venous Hemodiafiltration): Combines both dialysis and filtration for more efficient solute removal.

Step 4: Conclusion.
CRRT is a critical intervention for managing severe kidney dysfunction in critically ill patients and helps maintain hemodynamic stability while performing dialysis.