Nursing Central: Calcium, Urine

Calcium, Urine

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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