Alert

Effective Jan. 5, 2026: Temporary Age-Based Visitor Restrictions at UNC Health for all inpatient and waiting areas throughout its inpatient hospitals.

Read More

Calcium, Urine, Random

Specimen Type = Yellow Top Urine Tube

Specimen Type

Test ID LAB371
EPIC ORDER CALCIUM, URINE, RANDOM
CPT Code(s) 82340
Group/Individual Test Individual
Laboratory Core Laboratory
Tube Station Routine 30; STAT 888
Specimen Routine:

10 mL random urine in Yellow Top Urine Tube (No Preservative/Additive).

10 ml random urine in Sterile Specimen Cup acceptable if refrigerated.

Gray top and tiger top urine preservative tubes are not acceptable for urine calcium.
Micro: 1 mL random urine in Yellow Top Urine Tube (No Preservative/Additive)
Stability Room Temperature: <2 hours
Refrigerated: 4 days
Frozen: 30 days
Availability 24 hrs/day
Turnaround Time Stat: 1 hr; Routine: 2 hrs
Reference Range Normal: Undefined; varies with diet
Comments Other clinical data should be taken into consideration when interpreting these results.

Reviewed by J. Carr on January 02, 2026

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514