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HelpTest Code LAB814 Calcium, Urine, 24 hour
Specimen Requirement
Preservative: 20 – 30 mL of 6M HCl prior to the start of collection
24-hour urine collection – submit entire collection to laboratory
Referring lab: submit 10.0 mL aliquot from a total 24-hour urine collection
24-hour total volume is required on request form for processing.
Specimen Stability
2 days at 20-25° C
4 days at 2-8° C
Testing Schedule
Daily
Reference Range
42 – 353 mg/24 hours
Testing Department
Chemistry
Method
Arsenazo III
CPT Code
82340