Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 9/3/2025

Management of Lactic Acidosis

Fluid Resuscitation

  • The European guideline recommends that saline solutions should not be used in severe acidosis, especially when associated with hyperchloremia, suggesting that alternative solutions should be considered 2
  • Balanced crystalloid solutions without lactate are preferred for fluid resuscitation in patients with lactic acidosis 2, 3
  • Normal saline should be used with caution and limited to a maximum of 1-1.5 L due to the risk of hyperchloremic acidosis, which can worsen metabolic acidosis 2
  • Goal-directed fluid therapy should be implemented to optimize hemodynamics while avoiding fluid overload 4

Special Patient Populations

  • In trauma patients with hemorrhagic shock who also have lactic acidosis, balanced electrolyte solutions without lactate are favored as the initial crystalloid solution 2
  • For patients with severe head trauma, hypotonic solutions such as Ringer's lactate should be specifically avoided to prevent cerebral edema (Grade 1B recommendation) 1, 5
  • The Surviving Sepsis Campaign recommends balanced crystalloids instead of normal saline for resuscitation in septic patients with lactic acidosis 6