Centralized Core Laboratory:Special Chemistry
Dark Green top (lithium heparin) tube - no gel separator; Purple top (EDTA)tube
0.5 mL (minimum 0.2 mL)
Cause for rejection:
Graphite Furnace Atomic Absorption Spectrophotometry
Wash the collection site well with soap and water before cleansing with Chlorhexadine wipe.. Label specimen as a venous or capillary collection. Notify lab if patient is being chelated.
Reference range: 0-4 ug/dL