Royal Blue Top Tube – Trace Element NH (Use for Aluminum, Zinc, Other Trace Metals)
- Allow the tube to fill until blood flow ceases.
- Immediately after drawing, gently invert the tube 5-10 times to activate the anticoagulant and prevent clotting.
- Use the bar code label with the patient’s name and ID to identify the specimen.
- Do not centrifuge.
- Refrigerate at 2°- 8° C.