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IRQ / FET-M
IRON, LIVER TISSUE

Test Code IRQ / FET-M 
Test IRON, LIVER TISSUE 
Methodology Perkin-Elmer ELAN 6100 by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) 
Description Useful for diagnosis of hemochromatosis 
Specimen 1. A minimum of 2 mg of liver tissue is required for analysis. 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. The 18-gauge needle produces a specimen that is thin and fragile and difficult to remove from paraffin.
2. Send in metal-free specimen vial. (Vial must be plastic, rinsed with re-distilled water, and dried in clean air.)
3. Send specimen refrigerated.
4. Paraffin block is also acceptable if not more than 1 or 2 cuts have been made to it for slides. (Blocks will be returned two weeks after the analysis is complete unless requested earlier.)

NOTE: Patient's date of birth is required to calculate iron index. 

Reference Values Iron
Males: 200-2,400 mcg/g dry weight

Females: 400-1,600 mcg/g dry weight


Iron Index:
< 1.0 mcmol/g/year 

Analytic Time 2 - 3 Days 
Day(s) Test Set Up Monday through Friday 
CPT Code(s) 83540