Copper/Zinc
Test Mnemonic
CUZN
CPT Codes
- 84630 - QTY (1)
- 82525 - QTY (1)
Aliases
- Cu
- Zn
Includes
- Plasma Copper (COPPER)
- Plasma Zinc (ZINC)
Performing Laboratory
Cleveland Clinic Laboratories
FDA Category
Laboratory Developed Test
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Plasma | EDTA (Royal blue) | Refrigerated | Do not allow plasma to remain on red cells. Do not allow specimen to come into contact with polystyrene, glass, metal or rubber. Centrifuge and transfer plasma to a polypropylene tube using a plastic transfer pipette. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | 30 Days |
| Frozen | 30 Days |
| Refrigerated | 30 Days |
Days Performed
Mon-Fri, exclud Cleveland Clinic observed holidays
Turnaround Time
1 - 7 days
Methodology
| Name | Description |
|---|---|
| Inductively Coupled Plasma / Mass Spectrometry (ICP-MS) |
Reference Range
| Copper | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Male | Normal | 70 - 140 | ug/dL | Female | Normal | 85 - 155 | ug/dL |
| Zinc | |||||
| Sex | Age From | Age To | Type | Range | Range Unit |
| Normal | 60-120 | ug/dL |
Special Info
Collect in Royal Blue EDTA tube. Do not allow plasma to remain on red cells. Do not allow specimen to come into contact with polystyrene, glass, metal or rubber. Centrifuge and transfer plasma to a polypropylene tube using a plastic transfer pipette.
Clinical Info
Evaluate trace element status
Clinical Limitation
Hemolysis can falsely elevate zinc concentrations in serum or plasma. Grossly hemolyzed samples will be rejected for zinc testing.