UW Hospital and Clinics Lab Test Directory
| Test Name: |
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Calcium, Urine
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| Test Code(s): |
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RUCA / UCAR
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| CPT Code(s): |
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82340
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| Methodology: |
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Cresolphthalein
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| Days Performed: |
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Daily, 24 hours.
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| Turnaround Time: |
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Stat: 2 hours.
Routine: 4 hours.
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Specimen Requirements
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| Specimen: |
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Random urine
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| Collection Instructions: |
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Random urine collection accepted. No preservative necessary.
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| Collection Container: |
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Preferred: Sterile screw cap container
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| Collection Volume: |
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Preferred: Entire collection
Pediatrics: Entire collection
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| Sample Analyzed: |
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Urine aliquot
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| Volume Required: |
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Preferred: 1 mL
Pediatrics: 0.2 mL
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| Specimen Transport: |
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Transport entire specimen to UWHC Core Laboratory (B4/220). Transport with coolant pack if coming from outreach location.
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Interpretation
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Random urines reported in mg/dL.
Reference ranges only available on urines with a collect time of 22-26 hours.
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| Additional Information: |
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The urine calcium result is increased by a maximum of 0.1 mg/dL for each 1.0 mg/dL of magnesium in the urine specimen.
For timed collection, refer to Calcium, Urine, 24 hour.
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