Referred Tests
| Web: | mayocliniclabs.com |
|---|---|
| Email: | mcl@mayo.edu |
| Telephone: | 800-533-1710 |
| International: | +1 855-379-3115 |
| Values are valid only on day of printing. | |
Test ID: CUT
Copper, Liver Tissue
Specimen Type 
Describes the specimen type validated for testing
Specimen Required Defines the optimal specimen required to perform the test and the preferred volume to complete testing
Patient Preparation: Gadolinium is known to interfere with most metal tests. If gadolinium-containing contrast media has been administered a specimen should not be collected for 96 hours.
Supplies: Metal Free Specimen Vial (T173)
Container/Tube:
Preferred: Mayo metal-free specimen vial (blue label)
Acceptable: Paraffin block if no more than 1 or 2 cuts have been made to it for slides
Specimen Volume: 2 mg
Collection Instructions:
1. 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.
2. Any specimen vial other than a Mayo metal-free vial used should be plastic, leached with 10% nitric acid for 2 days, rinsed with redistilled water, and dried in clean air.
Additional Information: Paraffin blocks will be returned 3 days after analysis.
Forms
If not ordering electronically, complete, print, and send a Gastroenterology and Hepatology Client Test Request (T728) with the specimen.
Specimen Minimum Volume Defines the amount of sample necessary to provide a clinically relevant result as determined by the Testing Laboratory
1 cm (18-gauge needle)
2 mm x 2 mm (punch) 0.3 mg by dry weight
Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected
Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the performing laboratory, alternate acceptable temperatures are also included
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Liver Tissue | Refrigerated (preferred) | ||
| Ambient | |||
| Frozen | |||