Acid-base balance and substitution fluid during continuous hemofiltration

Critically ill patients with acute renal failure usually present with an un stable acid-base balance, often leading to cardiovascular complications and multi-organ failure. Therefore, to prevent metabolic acidosis, acid-base b alance must be normalized and maintained; these patients are primarily trea ted with continuous hemofiltration techniques using different replacement f luids to influence the acid-base values. Dialysate solutions can be an acet ate-based, lactate-based, citrate-based or bicarbonate-based buffer. This a rticle discusses the strengths and weaknesses of each type of hemofiltratio n replacement fluid.