Specimen Requirements

Submit only 1 of the following specimens:

Plasma
Draw blood in a green top (lithium heparin) tube or a plasma gel tube. Spin down and send 0.5 mL of lithium heparin plasma refrigerated.
Note: 

• Indicate plasma on request form.
•  Label specimen appropriately (plasma).

Serum
Draw blood in a plain, red top tube or a serum gel tube. Spin down and send 0.5 mL of serum refrigerated.
Note: 

• Indicate serum on request form.
• Label specimen appropriately (serum).