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Labcorp Oklahoma, Inc.
Test Directory


Zinc, 24-Hour Urine

Order Name ZINC U
Test Number: 3603850
Revision Date 04/27/2020
Test Name Methodology LOINC Code
Zinc, 24-Hour Urine
Inductively-Coupled Plasma/Mass Spectrometry  
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 7 mL (3 mL) Urine, 24-hour 24 Hour Urine Acid Washed Container Refrigerated
Instructions 7mL(3mL) aliquot of a well-mixed urine collected in an acid-washed or metal-free container.

Collect without preservative and transport in a plastic, acid-washed or metal-free container. Record total volume on specimen container and on test requisition. To avoid contamination, do not measure 24-hour volume.
Specimen Stability: Room temperature: 5 days, Refrigerated: 14 days, Frozen: 30 days.
Reject Criteria: Hemolysis, Fecal contamination.

Please provide the following information with order:
Total Volume:  (prompt code: 4182022 )
Collection Duration:(prompt code: 4182024 )
Testing Schedule Sun, Wed, Fri 
Expected TAT 5-8 Days  
Clinical Use Zinc is an essential element involved in a myriad of enzyme systems including wound healing, immune function, and fetal development. Zinc measurements are used to detect and monitor industrial, dietary, and accidental exposure to zinc. Also, zinc measurements may be used to evaluate health and monitor response to treatment. 
CPT Code(s) 84630
Lab Section Reference Lab