|Values are valid only on day of printing.|
Diagnosing risk factors for patients with calcium kidney stones.
Monitoring results of therapy in patients with calcium stones or renal tubular acidosis.
A timed 24-hour urine collection is the preferred specimen for measuring and interpreting this urinary analyte. Random collections normalized to urinary creatinine may be of some clinical use in patients who cannot collect a 24-hour specimen, typically small children. Therefore, this random test is offered for children <16 years old.