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Test Code CUT Copper, Liver Tissue

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Liver Tissue


Specimen 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.

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 Special Container
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 days

Specimen Retention Time

60 days

Reject Due To

  All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.