Specimen Requirements

Store samples capped and upright at all times at 2–8°C up to 7 days.

Serum from gel tube is preferred, plasma from lithium heparin tube is acceptable.

Spin down within 2 hours of draw, and send 2 mL of serum (or plasma).

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

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