Preferred: Venous Whole Blood, one certified lead-free 6.0 mL royal blue (K2EDTA or Na2EDTA) top tube. Also acceptable: Venous whole blood, one 4.0 mL lavender (EDTA) top tube. PROTECT FROM LIGHT.
NOTE: All elevated Lead blood levels collected in a non-certified lead-free tube (i.e., EDTA lavender top tube) will be run with the following disclaimer: “Specimen was collected in a non-certified lead-free tube. Recommend confirming elevated level of blood lead with a second specimen collected in a lead-free tube."