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HelpTest Code LAB7859 Copper, Liver Tissue
Additional Codes
CUT
Reporting Name
Copper, Liver TsUseful For
Diagnosing Wilson disease and primary biliary cirrhosis using liver tissue specimens
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
Liver TissueSpecimen Required
Supplies: Metal Free Specimen Vial (T173)
Container/Tube:
Preferred: Mayo metal-free specimen vial
Acceptable: Paraffin block, with no more than 1 or 2 cuts previously made
Specimen Volume: 2 mg
Collection Instructions: Two mg of liver tissue is required. This is typically a piece of tissue from a 22-gauge needle biopsy at least 2 cm long. If an 18-gauge needle is used, the tissue must be at least 1 cm in length.
Specimen Stability Information:
Fresh or formalin-fixed liver tissue specimens: Frozen (-30 to -10° C) at least 20 years
Paraffin-embedded (block) liver tissue specimens: Ambient (16 to 24° C) at least 12 1/2 years
Additional Information: Paraffin blocks will be returned 7 days after analysis is complete.
Specimen Minimum Volume
Needle biopsy: See Specimen Required; 2 mm x 2 mm (punch): 0.3 mg by dry weight
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Liver Tissue | Refrigerated (preferred) | |
| Ambient | ||
| Frozen | ||
Reference Values
<50 mcg/g dry weight
Day(s) Performed
Monday, Thursday
CPT Code Information
82525
Report Available
3 to 6 daysReject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Method Name
Inductively Coupled Plasma Mass Spectrometry (ICP-MS)
Forms
If not ordering electronically, complete, print, and send a Gastroenterology and Hepatology Test Request (T728) with the specimen.