1.0 mL whole blood (EDTA preferred) AND 1.7 mL serum, off the clot. For birds, 0.60 mL whole blood minimum; do not spin.
Do not centrifuge whole blood.
Serum or plasma drawn and shipped in plastic tube, 1.0 ml; for birds, min 0.30 ml for zinc alone; rubber stoppers other than royal-blue trace mineral type may be contaminated with zinc **For birds, if both zinc and lead are needed (HMP), minimum sample is 0.60 ml whole blood drawn into plastic EDTA or heparin tube – DO NOT SPIN**
Label all samples. Ship overnight with cold packs.