Table 1 Normal reference values of 24-h urinary parameters
From: Metabolic evaluation of high-risk stone formers: a retrospective study
Parameters | Measuring principles | Values |
|---|---|---|
Citrate | Enzymatic | 0.6–4.81 (mmol/day) |
Oxalate | Spectrophotometry | 0.07–0.48 (mmol/day) |
Calcium | Arsenazo 3 | 2.5–7.5 (mmol/day) |
Phosphorus | Molybdate UV | 12.9–41.9 (mmol/day) |
Uric acid | Uricase | 1.4–4.4 (mmol/day) |
Potassium | Indirect ISE | 11–80 (mEq/l) |
Sodium | Indirect ISE | 25–301 (mEq/l) |