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General Information:

Web Links:

Mayo Clinic Laboratories

Test Code LAB0201624 Calcium, 24 Hour, Urine

Methodology

Arsenazo III Dye

Performing Laboratory

CentraCare Laboratory Services

Specimen Requirements

Specimen Type: Urine, 24 hour

Container/Tube: Plastic urine container

Specimen Volume: 10 mL

Collection Instructions: No Preservative

Acceptable Preservatives:  Boric acid, 50% Acetic acid, 6N HCl

6 N HCL can be added at CCLS to adjust pH to <2.0

Additional Information:

1. 24-Hour volume is required.

2. Follow instructions in Urine Collection in Special Instructions for timed specimens.

Specimen Transport Temperature

Refrigerated

Reference Values

100-300 mg/24 hours

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

82340

Special Instructions