Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

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

Last Updated: 9/20/2025

Fluid Management in Lithium Intoxication

General Considerations for Fluid Choice

  • The American Society of Nephrology recommends the use of crystalloids as first-line for intravascular volume expansion in patients at risk of acute kidney injury 1
  • For most patients requiring fluid resuscitation, balanced crystalloid solutions like Ringer's lactate are preferred as first-line, except in specific cases 2

Characteristics of Crystalloid Solutions

  • Normal saline contains 154 mmol/L of both sodium and chloride, making it hyperchloremic compared to plasma 2
  • Ringer's lactate is a balanced solution with nearly physiological concentrations of electrolytes and contains lactate as a buffer 2
  • Ringer's lactate has a lower chloride content than normal saline, reducing the risk of hyperchloremic metabolic acidosis 2

Special Considerations for Lithium Intoxication

  • The Kidney International journal suggests that hemodynamic monitoring is recommended during fluid administration in patients with lithium intoxication 1

Precautions in Fluid Administration

  • Patients with heart failure or chronic kidney disease should be carefully monitored to prevent volume overload during fluid resuscitation 3
  • The Mayo Clinic Proceedings recommends that the assessment of volume status and tissue perfusion should be performed within 6 hours if hypotension persists after fluid administration 4

Monitoring During Fluid Therapy

  • The Kidney International journal recommends hemodynamic monitoring during fluid administration in patients with lithium intoxication 1
  • In cases of vasomotor shock, the use of vasopressors along with fluids is recommended in patients with or at risk of acute kidney injury 1