Specimen Requirements

Plasma or serum and urine are required for this test. Serum must be drawn at time of urine collection.

Plasma

Draw blood in a green-top (lithium heparin) tube(s). Spin down and send 1 mL (pediatric:  0.2 mL) of lithium heparin plasma.

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

Serum
Draw blood in a plain, red-top tube(s) or a serum gel tube(s). Spin down and send 1 mL of serum.
Note:  1. Indicate serum on request form.
2. Label specimen appropriately (serum).

Urine
Submit an entire 24-hour urine collection in a urine container. No preservative. Refrigerate specimen during collection, and send specimen refrigerated.

Note:  1. Starting and ending times of collection are required on request form for processing.
2. Follow instructions in “Urine Collection—Decatur” in “Special Instructions.”

3. Label specimen appropriately (urine).