General
Synonym/Acronym:
N/A.
Common Use:
To indicate sufficiency of dietary calcium intake and rate of absorption. Urine calcium levels are also used to assess bone resorption, renal stones, and renal loss of calcium.
Specimen:
Urine (5 mL) from an unpreserved random or timed specimen collected in a clean plastic collection container.
Normal Findings:
(Method: Spectrophotometry)
| Age | Conventional Units* | SI Units (Conventional Units × 0.025)* |
|---|
| Infant and child | Up to 6 mg/kg per 24 hr | Up to 0.15 mmol/kg per 24 hr |
| Adult on average diet | 100–300 mg/24 hr | 2.5–7.5 mmol/24 hr |
| *Values depend on diet. |
Calcium, Urine has been found in Davis's Lab & Diagnostic Tests
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