Laboratory Test DirectoryShare
Erythrocyte Porphyrin (EP), Whole Blood
|Performed:||Mon, Wed, Sat|
Collect: Royal blue (EDTA) OR Lavender (EDTA) - 1 ml whole blood.
Use royal blue tube when also testing for lead.
Specimen Preparation: Protect from light during collection, storage, and shipment.
Storage/Transport Temperature: Refrigerated.
Unacceptable Conditions: Specimens not collected in EDTA. Clotted specimens.
Specimens not protected from light acceptable with a disclaimer.
Stability: Ambient: Unacceptable; Refrigerated: 1 week; Frozen: 1 month