Specimen Requirements

Container/Tube:

Preferred: Gold-top serum gel tube or plain red-top tube

Acceptable: Green-top (lithium heparin) tube or lavender-top (EDTA) tube
Specimen Volume: 2 mL of serum or plasma

Stability: Store samples at 2 to 8°C if not tested within 8 hours of collection.

                Samples may be stored in primary tubes at 2 to 8°C up to 2 days.

                Store samples stoppered and upright at all times at 2 to 8°C up to 2 days.

                Freeze samples, devoid of red blood cells, at or below -20°C for up to 180 days.