Wilson Disease Screening Panel, Serum
0020598
Ordering Recommendation
 
Mnemonic
WILSON D
Methodology
Quantitative Immunoturbidimetry/Quantitative Inductively Coupled Plasma-Mass Spectrometry
Performed
Refer to individual components
Reported
1-5 days  
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
Patient Preparation
Diet, medication, and nutritional supplements may introduce interfering substances. Patient should be encouraged to discontinue nutritional supplements, vitamins, minerals, and non-essential over-the-counter medications (upon the advice of their physician).  
Collect
Royal blue (no additive).  
Specimen Preparation
Centrifuge and pour off serum ASAP or within 2 hours of collection. Do not allow serum to remain on cells. Transfer 4 mL serum (Min: 2.5 mL) 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.  
Storage/Transport Temperature
Frozen.  
Unacceptable Conditions
Separator tubes. Specimens that are not separated from the red cells or clot.  
Remarks
  
Stability
After separation from cells: Ambient: 8 hours; Refrigerated: 72 hours; Frozen: 1 month  
Reference Interval
 
 
Test Number Components Reference Interval
0020096Copper, Serum or Plasma Effective November 14, 2011
 
Age Male Female
0-​10 years 75-​153 µg/dL 75-​153 µg/dL
11 years-​12 years 64-​132 µg/dL 64-​132 µg/dL
13 years-​18 years 57-​129 µg/dL 57-​129 µg/dL
19 years and older 70-​140 µg/dL 80-​155 µg/dL
0050160Ceruloplasmin  
 
6 months-​6 years 18-​37 mg/dL
7-​17 years 20-​43 mg/dL
18 years and older 17-​54 mg/dL
0020596Copper, Serum Free (Direct) 0.0-​10.0 µg/dL
Interpretive Data
Free copper (direct) is determined with serum ultrafiltrate. In Wilson disease or other conditions of copper overload, serum ceruloplasmin is usually low and free copper (direct) is usually high. Other tests used to diagnosis Wilson disease include 24-hour urine copper, and hepatic copper. Slit lamp examination for Kayser-Fleischer rings and genetic testing may also be helpful.  
Note
Elevated results from tubes not certified metal-free may be due to contamination.  Elevated levels should be confirmed with a second specimen collected in a metal-free tube.
CPT Code(s)
82390; 82525 x2
Components
Component Test Code*Component Chart Name
0020096Copper, Serum/Plasma
0020596Copper, Serum Free (Direct)
0050160Ceruloplasmin
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • ceruloplasmin
  • Copper free and direct
  • Copper Panel
  • Copper, Free
  • CU free and direct
  • Direct and free copper
  • Free Copper Index
  • Free CU index