Physician Office Specimen Requirements

Submit only 1 of the following specimens:

Preferred:

Plasma

Container/Tube:  Light green-top (lithium heparin gel) tube(s)

Specimen:  2 mL (minimum volume:  0.5 mL) of lithium heparin plasma
Transport Temperature:  Refrigerate

Collection Instructions:  Draw specimen 2 hours after patient has eaten. Meal content is determined by ordering physician. Spin down immediately and send entire tube to laboratory. If there is a delay in transport of >8 hours, send specimen refrigerated.

Note:  1. Indicate plasma on request form.
2. Label specimen appropriately (plasma).

Alternate:

Serum
Container/Tube:  Gold-top serum gel tube(s) - Plain, red-top tube is also acceptable.

Specimen:  2 mL (minimum volume:  0.5 mL) of serum
Transport Temperature:  Refrigerate

Collection Instructions:  Draw specimen 2 hours after patient has eaten. Meal content is determined by ordering physician. Allow specimen to clot for approximately 10 minutes and spin down. If drawing gold-top serum gel tube, send entire tube to laboratory. If drawing plain, red-top tube, remove serum and place in separate plastic vial. If there is a delay in transport of >8 hours, send specimen refrigerated.

Note:  1. Indicate serum on request form.
2. Label specimen appropriately (serum).