Submit a piece of liver tissue at least 2.0 cm long from a 22 gauge needle biopsy.
Paraffin block if not more than 1-2 cuts have been made to it for slides.
Refrigerated (preferred)
Frozen (OK)
Ambient (OK)
Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)
<50 µg/g dry weight