What fraction of GFR does lithium clearance represent?

Lithium clearance is approximately 20-30% of GFR in healthy adults, reflecting net tubular reabsorption of ~70-80%. This fraction can change with sodium balance, diuretic use, and renal function alterations.

How should lithium dosing be managed in CKD?

Lithium should be used with extreme caution in CKD (eGFR <45 mL/min) with reduced doses, monthly serum level monitoring, and regular renal function checks. At eGFR <30, alternative mood stabilizers are generally preferred.

Lithium Renal Clearance as Fraction of GFR

Calculate lithium renal clearance as a percentage of GFR to assess tubular reabsorption efficiency and predict lithium accumulation risk in patients with chronic kidney disease.

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Lithium Renal Clearance as Fraction of GFR

Frequently Asked Questions

What fraction of GFR does lithium clearance represent?

How should lithium dosing be managed in CKD?