Ceruloplasmin
0050160
Ordering Recommendation
May be used as initial screening test in Wilson disease or copper transport disorders; preferred initial testing is panel with serum ceruloplasmin, serum copper, and free (direct) serum copper  (eg, Wilson Disease Screening Panel, Serum 0020598).
Mnemonic
CERU
Methodology
Quantitative Immunoturbidimetry
Performed
Sun-Sat
Reported
Within 24 hours  
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
Patient Preparation
Fasting specimen preferred.  
Collect
Serum separator tube or plasma preparation tube. Also acceptable: Plasma collected in green (lithium heparin).  
Specimen Preparation
Allow specimen to clot completely at room temperature. Separate serum or plasma from cells ASAP or within 2 hours of collection. Transfer 0.5 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.2 mL)   
Storage/Transport Temperature
Frozen.  
Unacceptable Conditions
EDTA plasma or hemolyzed specimens.  
Remarks
  
Stability
After separation from cells: Ambient: 8 hours; Refrigerated: 72 hours; Frozen: 1 month  
Reference Interval
 
 
6 months-​6 years 18-​37 mg/dL
7-​17 years 20-​43 mg/dL
18 years and older 17-​54 mg/dL
Interpretive Data
 
Note
 
CPT Code(s)
82390
Components
Component Test Code*Component Chart Name
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
  • Copper Oxidase
  • Ferroxidase