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
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Plasma | EDTA (Royal blue) | Refrigerated | Collect in a trace metal-free tube (royal blue top). Separate from cells ASAP or within 2 hours of collection. Transfer plasma to a metal-free polypropylene transport tube. Carefully pour the plasma and avoid transfer of cellular blood components. |
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
Specimen must be collected and received in a certified metal free tube. Do not allow specimen to come into contact with polystyrene, glass, metal or rubber.
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.