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Test Code CA 24U Calcium, 24 Hour, Urine

Performing Laboratory

Memorial Hospital Laboratory- Automated Procedures  304-388-5953       

Specimen Requirements

Preferred specimen- Entire 24-hour urine collection in a urine container without preservative

Acceptable specimen-Entire 24-hour urine collection in a urine container with 6NHCL

Refrigerate specimen during collection and send specimen on ice.

Start and end times of collection are required on request form for processing.

Specimen Rejection

  • Improperly labeled, collected, stored, and transported

24-Hour Urine Collection Instructions

24 Hour Urine Collection

Storage and Stability

Room temperature 15-30oC 5 days
Refrigerated 2-8oC 5 weeks
Frozen <-20oC 6 months

Reference Values

42-353 mg/24 hours

Methodology

Photometric assay

Days Test Set Up and Turnaround

Monday through Sunday, Continuously 

AM Collection Expected by 9AM same day
Routine Expected within 24 hrs
Stat Expected within 1 hr
Timed Expected results are test dependant

CPT Coding

81050

82340