Serum Lithium Minimum And Diuresis

Serum lithium was analyzed over a 24-hour period in patients who were receiving lithium in one daily dose. Linear regression was performed with urine volume as the independent variable and lithium dose, maximum serum lithium concentration, 12-hour serum lithium, minimum serum lithium, length of treatment, and age of patients as the dependent variables. Only minimum serum lithium and urine volume showed a good positive correlation.