Useful in the assessment of deficiency or overload. Measures both protein-bound and free forms of copper in serum or plasma.
Quantitative Inductively Coupled Plasma-Mass Spectrometry
Diet, medication, and nutritional supplements may introduce interfering substances. Patients should be encouraged to discontinue nutritional supplements, vitamins, minerals, and non-essential over-the-counter medications (upon the advice of their physician).
Royal Blue (No Additive), Royal Blue (K2EDTA), or Royal Blue (Na2EDTA).
Separate from cells ASAP or within 2 hours of collection. Transfer 2 mL serum or plasma to an ARUP Trace Element-Free Transport Tube (ARUP supply #43116) available online through eSupply using ARUP Connect™ or contact ARUP Client Services at (800) 522-2787. (Min: 0.5 mL)
Room temperature. Also acceptable: Refrigerated or frozen.
Specimens that are not separated from the red cells or clot within 2 hours. Specimens collected in containers other than specified. Specimens transported in containers other than specified.
Ambient: Indefinitely; Refrigerated: Indefinitely; Frozen: Indefinitely
|0-10 years||75.0-153.0 µg/dL||75.0-153.0 µg/dL|
|11 years-12 years||64.0-132.0 µg/dL||64.0-132.0 µg/dL|
|13 years-18 years||57.0-129.0 µg/dL||57.0-129.0 µg/dL|
|19 years and older||70.0-140.0 µg/dL||80.0-155.0 µg/dL|
Elevated results may be due to skin or collection-related contamination, including the use of a noncertified metal-free collection/transport tube. If contamination concerns exist due to elevated levels of serum/plasma copper, confirmation with a second specimen collected in a certified metal-free tube is recommended.
Serum copper may be elevated with infection, inflammation, stress, and copper supplementation. In females, elevated copper may also be caused by oral contraceptives and pregnancy (concentrations may be elevated up to 3 times normal during the third trimester).
Serum copper may be reduced by use of corticosteroids and zinc and by malnutrition or malabsorption.
Laboratory Developed Test (LDT)
|Component Test Code*||Component Chart Name||LOINC|
- Copper Plasma
- Cu, Plasma
- Kaiser Fleischer Ring
- total blood copper level