Specimen Requirements

Do not use samples that have been stored at room temperature for longer than 8 hours.

Tightly cap and refrigerate specimens at 2–8°up to 48 hours.

Draw blood in a serum gel tube(s) preferred. Plasma from a lithium heparin is acceptable. 

Spin down and send 1 mL of serum (or plasma) refrigerated.

Unspun specimens must be transported at ambient temperature and arrive to the laboratory within one hour of draw.