Home
HelpTEST ID CERS Ceruloplasmin, Serum
Reporting Name
Ceruloplasmin, SSpecimen Type
SerumSpecimen Required
Patient Preparation:
Fasting: 4 hours, preferred but not required
Supplies: Sarstedt Aliquot Tube, 5 mL (T914)
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial (false-bottom vials are not acceptable)
Specimen Volume: 1 mL
Collection Instructions: Centrifuge and aliquot serum into a plastic vial.
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Refrigerated (preferred) | 7 days |
| Frozen | 30 days |
Special Instructions
Testing Algorithm
For information see Wilson Disease Testing Algorithm.
Method Name
Nephelometric Assay
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Gross icterus | Reject |
Reference Values
Males:
0-8 weeks: 7.4-23.7 mg/dL
9 weeks-5 months: 13.5-32.9 mg/dL
6-11 months: 13.7-38.9 mg/dL
12 months-7 years: 21.7-43.3 mg/dL
8-13 years: 20.5-40.2 mg/dL
14-17 years: 17.0-34.8 mg/dL
≥18 years: 19.0-31.0 mg/dL
Females:
0-8 weeks: 7.4-23.7 mg/dL
9 weeks-5 months: 13.5-32.9 mg/dL
6-11 months: 13.7-38.9 mg/dL
12 months-7 years: 21.7-43.3 mg/dL
8-13 years: 20.5-40.2 mg/dL
14-17 years: 20.8-43.2 mg/dL
≥18 years: 20.0-51.0 mg/dL
Day(s) Performed
Monday through Sunday
Report Available
1 to 7 daysSpecimen Retention Time
7 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
82390
Forms
If not ordering electronically, complete, print, and send 1 of the following forms with the specimen:
-Benign Hematology Test Request (T755)
-General Request (T239)
Useful For
Investigation of patients with possible Wilson disease
Clinical Information
Ceruloplasmin is a positive acute-phase reactant and a copper-binding protein that accounts for over 95% of serum copper in normal adults. Ceruloplasmin is measured primarily to assist with a diagnosis of Wilson disease. Other indications include Menkes disease, dietary copper insufficiency, and risk of cardiovascular disease.
Wilson disease is a rare inherited disorder of copper transport that results in low serum copper and ceruloplasmin and accumulation of copper in various tissues. The pathological accumulation of copper in the liver, brain, cornea, and kidney causes cirrhosis, neuropsychiatric symptoms, Kayser-Fleischer rings, and hematuria/proteinuria, respectively. See Wilson Disease Testing Algorithm for appropriate use of clinical findings, serum biomarkers, genetic tests, and tissue biopsies when working up suspected cases.
Menkes disease is an X-linked disorder in which dietary copper is absorbed from the gastrointestinal tract but cannot be transported, so copper is not available to the liver for incorporation into ceruloplasmin.
Dietary ceruloplasmin deficiency may be due to inadequate dietary copper intake, long-term parenteral nutrition without copper supplementation, malabsorption, penicillamine therapy, or a combination of these.