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Calcium, 24 Hour Urine
Test Code24CA
CPT Codes
81050, 82340
Preferred Specimen
10 ml aliquot from 24 hr urine
Instructions
Submit an entire 24-hour urine collection in a urine container supplied. No preservative. Send specimen refrigerated. Note: Starting and ending times of collection are required on request form for processing. See "Urine Collection"
Transport Container
24 Urine container
Transport Temperature
Refrigerate
Methodology
Colorimetric
Reference Range
Average calcium intake diet: 100 - 300 mg/24 hrs
Clinical Significance
Useful for determining the amount of calcium excreted in urine.