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HelpIron, Liver Tissue
Additional Codes
|
Primary ID |
Epic Code |
Mayo Test ID |
|
FELVR |
LAB2459 |
FET |
Reporting Name
Iron, Liver TsUseful For
Diagnosis of hemochromatosis using liver tissue specimens
Testing Algorithm
For more information see Hereditary Hemochromatosis Algorithm.
Method Name
Inductively Coupled Plasma Mass Spectrometry (ICP-MS)
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
Liver TissueNecessary Information
Patient's date of birth is required to calculate iron index.
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 are 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 | |||
Reject Due To
| All specimens will be evaluated at Mayo Clinic Laboratories for test suitability. |
Special Instructions
Reference Values
Iron
Males: 200-2,400 mcg/g dry weight
Females: 200-1,800 mcg/g dry weight
Iron Index
≥13 years: <1.0 mcmol/g/year
Reference values have not been established for patients that are younger than 13 years.
Day(s) Performed
Monday, Thursday
CPT Code Information
83540
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| FET | Iron, Liver Ts | 57028-3 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 8350 | Iron, Liver Ts | 57028-3 |
| 7770 | Hepatic Iron Index | 49061-5 |